155663054400 has 168 divisors, whose sum is σ = 583662454720. Its totient is φ = 35580119040.

The previous prime is 155663054359. The next prime is 155663054413. The reversal of 155663054400 is 4450366551.

It is a tau number, because it is divible by the number of its divisors (168).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2282815 + ... + 2350014.

Almost surely, 2^155663054400 is an apocalyptic number.

155663054400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155663054400 is an abundant number, since it is smaller than the sum of its proper divisors (427999400320).

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

155663054400 is a wasteful number, since it uses less digits than its factorization.

155663054400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632861 (or 4632846 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 155663054400 in words is "one hundred fifty-five billion, six hundred sixty-three million, fifty-four thousand, four hundred".