126604691608 has 16 divisors (see below), whose sum is σ = 237629296080. Its totient is φ = 63236879328.

The previous prime is 126604691597. The next prime is 126604691611. The reversal of 126604691608 is 806196406621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8175091 + ... + 8190562.

It is an arithmetic number, because the mean of its divisors is an integer number (14851831005).

Almost surely, 2^126604691608 is an apocalyptic number.

It is an amenable number.

126604691608 is a deficient number, since it is larger than the sum of its proper divisors (111024604472).

126604691608 is a wasteful number, since it uses less digits than its factorization.

126604691608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16366626 (or 16366622 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 126604691608 in words is "one hundred twenty-six billion, six hundred four million, six hundred ninety-one thousand, six hundred eight".