125116655478 has 64 divisors (see below), whose sum is σ = 262220378112. Its totient is φ = 39723409440.

The previous prime is 125116655429. The next prime is 125116655479. The reversal of 125116655478 is 874556611521.

It is a self number, because there is not a number n which added to its sum of digits gives 125116655478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125116655479) 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, 67739551 + ... + 67741397.

It is an arithmetic number, because the mean of its divisors is an integer number (4097193408).

Almost surely, 2^125116655478 is an apocalyptic number.

125116655478 is an abundant number, since it is smaller than the sum of its proper divisors (137103722634).

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

125116655478 is a wasteful number, since it uses less digits than its factorization.

125116655478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689.

The product of its digits is 2016000, while the sum is 51.

The spelling of 125116655478 in words is "one hundred twenty-five billion, one hundred sixteen million, six hundred fifty-five thousand, four hundred seventy-eight".