155272557960 has 1152 divisors, whose sum is σ = 625867482240. Its totient is φ = 34279096320.

The previous prime is 155272557911. The next prime is 155272557961. The reversal of 155272557960 is 69755272551.

155272557960 is a `hidden beast` number, since 1 + 5 + 5 + 2 + 7 + 2 + 5 + 579 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 155272557897 and 155272557906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155272557961) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3610989699 + ... + 3610989741.

It is an arithmetic number, because the mean of its divisors is an integer number (543287745).

Almost surely, 2^155272557960 is an apocalyptic number.

155272557960 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 155272557960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312933741120).

155272557960 is an abundant number, since it is smaller than the sum of its proper divisors (470594924280).

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

155272557960 is a wasteful number, since it uses less digits than its factorization.

155272557960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 6615000, while the sum is 54.

The spelling of 155272557960 in words is "one hundred fifty-five billion, two hundred seventy-two million, five hundred fifty-seven thousand, nine hundred sixty".