126645612056 has 32 divisors (see below), whose sum is σ = 243634535760. Its totient is φ = 61684301952.

The previous prime is 126645611999. The next prime is 126645612061. The reversal of 126645612056 is 650216546621.

It is a super-2 number, since 2×126645612056² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126645611998 and 126645612016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365195 + ... + 621818.

Almost surely, 2^126645612056 is an apocalyptic number.

It is an amenable number.

126645612056 is a deficient number, since it is larger than the sum of its proper divisors (116988923704).

126645612056 is a wasteful number, since it uses less digits than its factorization.

126645612056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987435 (or 987431 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 126645612056 in words is "one hundred twenty-six billion, six hundred forty-five million, six hundred twelve thousand, fifty-six".