125416900809 has 12 divisors (see below), whose sum is σ = 181335538800. Its totient is φ = 83529208824.

The previous prime is 125416900789. The next prime is 125416900897. The reversal of 125416900809 is 908009614521.

125416900809 is a `hidden beast` number, since 12 + 541 + 6 + 90 + 0 + 8 + 0 + 9 = 666.

It is not a de Polignac number, because 125416900809 - 2⁷ = 125416900681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125416900109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6828519 + ... + 6846860.

It is an arithmetic number, because the mean of its divisors is an integer number (15111294900).

Almost surely, 2^125416900809 is an apocalyptic number.

It is an amenable number.

125416900809 is a deficient number, since it is larger than the sum of its proper divisors (55918637991).

125416900809 is a wasteful number, since it uses less digits than its factorization.

125416900809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13676404 (or 13676401 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 125416900809 in words is "one hundred twenty-five billion, four hundred sixteen million, nine hundred thousand, eight hundred nine".