125815061078 has 64 divisors (see below), whose sum is σ = 224385638400. Its totient is φ = 51767009280.

The previous prime is 125815061039. The next prime is 125815061093. The reversal of 125815061078 is 870160518521.

It is a super-4 number, since 4×125815061078⁴ (a number of 46 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84609251 + ... + 84610737.

It is an arithmetic number, because the mean of its divisors is an integer number (3506025600).

Almost surely, 2^125815061078 is an apocalyptic number.

125815061078 is a deficient number, since it is larger than the sum of its proper divisors (98570577322).

125815061078 is a wasteful number, since it uses less digits than its factorization.

125815061078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565.

The product of its (nonzero) digits is 134400, while the sum is 44.

Adding to 125815061078 its reverse (870160518521), we get a palindrome (995975579599).

The spelling of 125815061078 in words is "one hundred twenty-five billion, eight hundred fifteen million, sixty-one thousand, seventy-eight".