155286909060816 has 240 divisors, whose sum is σ = 447125503279104. Its totient is φ = 46395744385536.

The previous prime is 155286909060793. The next prime is 155286909060821. The reversal of 155286909060816 is 618060909682551.

It is a super-2 number, since 2×155286909060816² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46817005 + ... + 50024051.

Almost surely, 2^{155286909060816} is an apocalyptic number.

155286909060816 is a gapful number since it is divisible by the number (16) 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 155286909060816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223562751639552).

155286909060816 is an abundant number, since it is smaller than the sum of its proper divisors (291838594218288).

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

155286909060816 is a wasteful number, since it uses less digits than its factorization.

155286909060816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3207258 (or 3207239 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 66.

The spelling of 155286909060816 in words is "one hundred fifty-five trillion, two hundred eighty-six billion, nine hundred nine million, sixty thousand, eight hundred sixteen".