125664016 has 20 divisors (see below), whose sum is σ = 249413724. Its totient is φ = 61299200.

The previous prime is 125664013. The next prime is 125664031. The reversal of 125664016 is 610466521.

It can be written as a sum of positive squares in 2 ways, for example, as 9024016 + 116640000 = 3004^2 + 10800^2 .

It is not an unprimeable number, because it can be changed into a prime (125664013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95125 + ... + 96436.

Almost surely, 2^125664016 is an apocalyptic number.

125664016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125664016 is a deficient number, since it is larger than the sum of its proper divisors (123749708).

125664016 is a wasteful number, since it uses less digits than its factorization.

125664016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191610 (or 191604 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 125664016 is about 11209.9962533446. The cubic root of 125664016 is about 500.8837915712.

The spelling of 125664016 in words is "one hundred twenty-five million, six hundred sixty-four thousand, sixteen".