155877255168 has 384 divisors, whose sum is σ = 454968783360. Its totient is φ = 47269806080.

The previous prime is 155877255167. The next prime is 155877255181. The reversal of 155877255168 is 861552778551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (155877255167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 554723188 + ... + 554723468.

It is an arithmetic number, because the mean of its divisors is an integer number (1184814540).

Almost surely, 2^155877255168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155877255168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227484391680).

155877255168 is an abundant number, since it is smaller than the sum of its proper divisors (299091528192).

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

155877255168 is a wasteful number, since it uses less digits than its factorization.

155877255168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 463 counting only the distinct ones).

The product of its digits is 23520000, while the sum is 60.

The spelling of 155877255168 in words is "one hundred fifty-five billion, eight hundred seventy-seven million, two hundred fifty-five thousand, one hundred sixty-eight".