126665076172 has 12 divisors (see below), whose sum is σ = 222108103000. Its totient is φ = 63205618176.

The previous prime is 126665076157. The next prime is 126665076173. The reversal of 126665076172 is 271670566621.

It is not an unprimeable number, because it can be changed into a prime (126665076173) 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, 31727733 + ... + 31731724.

Almost surely, 2^126665076172 is an apocalyptic number.

It is an amenable number.

126665076172 is a deficient number, since it is larger than the sum of its proper divisors (95443026828).

126665076172 is a wasteful number, since it uses less digits than its factorization.

126665076172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63459960 (or 63459958 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 126665076172 in words is "one hundred twenty-six billion, six hundred sixty-five million, seventy-six thousand, one hundred seventy-two".