12552540064 has 24 divisors (see below), whose sum is σ = 24990490980. Its totient is φ = 6205748736.

The previous prime is 12552540037. The next prime is 12552540071. The reversal of 12552540064 is 46004525521.

It can be written as a sum of positive squares in 2 ways, for example, as 9045531664 + 3507008400 = 95108^2 + 59220^2 .

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, 2200899 + ... + 2206594.

Almost surely, 2^12552540064 is an apocalyptic number.

It is an amenable number.

12552540064 is a deficient number, since it is larger than the sum of its proper divisors (12437950916).

12552540064 is an equidigital number, since it uses as much as digits as its factorization.

12552540064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407592 (or 4407584 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 12552540064 in words is "twelve billion, five hundred fifty-two million, five hundred forty thousand, sixty-four".