155256574432 has 24 divisors (see below), whose sum is σ = 305875369800. Its totient is φ = 77573940864.

The previous prime is 155256574427. The next prime is 155256574433. The reversal of 155256574432 is 234475652551.

It is a super-2 number, since 2×155256574432² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155256574433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651882 + ... + 1743337.

It is an arithmetic number, because the mean of its divisors is an integer number (12744807075).

Almost surely, 2^155256574432 is an apocalyptic number.

It is an amenable number.

155256574432 is a deficient number, since it is larger than the sum of its proper divisors (150618795368).

155256574432 is a wasteful number, since it uses less digits than its factorization.

155256574432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396658 (or 3396650 counting only the distinct ones).

The product of its digits is 5040000, while the sum is 49.

The spelling of 155256574432 in words is "one hundred fifty-five billion, two hundred fifty-six million, five hundred seventy-four thousand, four hundred thirty-two".