125515804106 has 16 divisors (see below), whose sum is σ = 234730854720. Its totient is φ = 48902261280.

The previous prime is 125515804021. The next prime is 125515804109. The reversal of 125515804106 is 601408515521.

It is a self number, because there is not a number n which added to its sum of digits gives 125515804106.

It is not an unprimeable number, because it can be changed into a prime (125515804109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407518691 + ... + 407518998.

It is an arithmetic number, because the mean of its divisors is an integer number (14670678420).

Almost surely, 2^125515804106 is an apocalyptic number.

125515804106 is a deficient number, since it is larger than the sum of its proper divisors (109215050614).

125515804106 is a wasteful number, since it uses less digits than its factorization.

125515804106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815037709.

The product of its (nonzero) digits is 48000, while the sum is 38.

The spelling of 125515804106 in words is "one hundred twenty-five billion, five hundred fifteen million, eight hundred four thousand, one hundred six".