12145264556 has 12 divisors (see below), whose sum is σ = 21407121960. Its totient is φ = 6028944000.

The previous prime is 12145264513. The next prime is 12145264577. The reversal of 12145264556 is 65546254121.

It is a super-2 number, since 2×12145264556² (a number of 21 digits) contains 22 as substring.

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, 10921445 + ... + 10922556.

It is an arithmetic number, because the mean of its divisors is an integer number (1783926830).

Almost surely, 2^12145264556 is an apocalyptic number.

It is an amenable number.

12145264556 is a deficient number, since it is larger than the sum of its proper divisors (9261857404).

12145264556 is a wasteful number, since it uses less digits than its factorization.

12145264556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21844144 (or 21844142 counting only the distinct ones).

The product of its digits is 288000, while the sum is 41.

The spelling of 12145264556 in words is "twelve billion, one hundred forty-five million, two hundred sixty-four thousand, five hundred fifty-six".