12002517136 has 45 divisors (see below), whose sum is σ = 23695126923. Its totient is φ = 5889730560.

The previous prime is 12002517067. The next prime is 12002517193. The reversal of 12002517136 is 63171520021.

It is a happy number.

The square root of 12002517136 is 109556.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2678683536 + 9323833600 = 51756^2 + 96560^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26731440 + ... + 26731888.

Almost surely, 2^12002517136 is an apocalyptic number.

12002517136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12002517136 is the 109556-th square number.

It is an amenable number.

12002517136 is a deficient number, since it is larger than the sum of its proper divisors (11692609787).

12002517136 is an frugal number, since it uses more digits than its factorization.

12002517136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The spelling of 12002517136 in words is "twelve billion, two million, five hundred seventeen thousand, one hundred thirty-six".