155554641252 has 36 divisors (see below), whose sum is σ = 393995602000. Its totient is φ = 51747630192.

The previous prime is 155554641223. The next prime is 155554641317. The reversal of 155554641252 is 252146455551.

It is a happy number.

155554641252 is a `hidden beast` number, since 1 + 5 + 5 + 554 + 6 + 41 + 2 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 155554641198 and 155554641207.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4311658 + ... + 4347585.

Almost surely, 2^155554641252 is an apocalyptic number.

155554641252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155554641252 is an abundant number, since it is smaller than the sum of its proper divisors (238440960748).

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

155554641252 is a wasteful number, since it uses less digits than its factorization.

155554641252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8659752 (or 8659747 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 45.

The spelling of 155554641252 in words is "one hundred fifty-five billion, five hundred fifty-four million, six hundred forty-one thousand, two hundred fifty-two".