12532661064 has 128 divisors (see below), whose sum is σ = 43403212800. Its totient is φ = 3255232320.

The previous prime is 12532661039. The next prime is 12532661129. The reversal of 12532661064 is 46016623521.

12532661064 is a `hidden beast` number, since 1 + 2 + 5 + 32 + 6 + 610 + 6 + 4 = 666.

It is a super-2 number, since 2×12532661064² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360132 + ... + 393395.

It is an arithmetic number, because the mean of its divisors is an integer number (339087600).

Almost surely, 2^12532661064 is an apocalyptic number.

12532661064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12532661064 is an abundant number, since it is smaller than the sum of its proper divisors (30870551736).

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

12532661064 is a wasteful number, since it uses less digits than its factorization.

12532661064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753560 (or 753550 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 12532661064 in words is "twelve billion, five hundred thirty-two million, six hundred sixty-one thousand, sixty-four".