155560430320512 has 256 divisors, whose sum is σ = 475314862725120. Its totient is φ = 44156365608960.

The previous prime is 155560430320469. The next prime is 155560430320579. The reversal of 155560430320512 is 215023034065551.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1175474187 + ... + 1175606517.

It is an arithmetic number, because the mean of its divisors is an integer number (1856698682520).

Almost surely, 2^{155560430320512} is an apocalyptic number.

155560430320512 is a gapful number since it is divisible by the number (12) 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 155560430320512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237657431362560).

155560430320512 is an abundant number, since it is smaller than the sum of its proper divisors (319754432404608).

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

155560430320512 is a wasteful number, since it uses less digits than its factorization.

155560430320512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135201 (or 135189 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 155560430320512 in words is "one hundred fifty-five trillion, five hundred sixty billion, four hundred thirty million, three hundred twenty thousand, five hundred twelve".