126564494252 has 24 divisors (see below), whose sum is σ = 253141403424. Its totient is φ = 54239265792.

The previous prime is 126564494237. The next prime is 126564494261. The reversal of 126564494252 is 252494465621.

It is a self number, because there is not a number n which added to its sum of digits gives 126564494252.

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, 536588 + ... + 735564.

It is an arithmetic number, because the mean of its divisors is an integer number (10547558476).

Almost surely, 2^126564494252 is an apocalyptic number.

It is an amenable number.

126564494252 is an abundant number, since it is smaller than the sum of its proper divisors (126576909172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126564494252 is a wasteful number, since it uses less digits than its factorization.

126564494252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221705 (or 221703 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 50.

The spelling of 126564494252 in words is "one hundred twenty-six billion, five hundred sixty-four million, four hundred ninety-four thousand, two hundred fifty-two".