126605237992 has 16 divisors (see below), whose sum is σ = 237576743460. Its totient is φ = 63251439744.

The previous prime is 126605237987. The next prime is 126605238059. The reversal of 126605237992 is 299732506621.

It can be written as a sum of positive squares in 2 ways, for example, as 125822021796 + 783216196 = 354714^2 + 27986^2 .

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, 6386893 + ... + 6406684.

Almost surely, 2^126605237992 is an apocalyptic number.

It is an amenable number.

126605237992 is a deficient number, since it is larger than the sum of its proper divisors (110971505468).

126605237992 is a wasteful number, since it uses less digits than its factorization.

126605237992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12794820 (or 12794816 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 126605237992 in words is "one hundred twenty-six billion, six hundred five million, two hundred thirty-seven thousand, nine hundred ninety-two".