155215455336960 has 1280 divisors, whose sum is σ = 533710480343040. Its totient is φ = 38419734528000.

The previous prime is 155215455336937. The next prime is 155215455337021. The reversal of 155215455336960 is 69633554512551.

155215455336960 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 155215455336894 and 155215455336903.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 102723662605 + ... + 102723664115.

It is an arithmetic number, because the mean of its divisors is an integer number (416961312768).

Almost surely, 2^{155215455336960} is an apocalyptic number.

155215455336960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155215455336960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266855240171520).

155215455336960 is an abundant number, since it is smaller than the sum of its proper divisors (378495025006080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155215455336960 is a wasteful number, since it uses less digits than its factorization.

155215455336960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1785 counting only the distinct ones).

The product of its (nonzero) digits is 72900000, while the sum is 60.

The spelling of 155215455336960 in words is "one hundred fifty-five trillion, two hundred fifteen billion, four hundred fifty-five million, three hundred thirty-six thousand, nine hundred sixty".