12520165662 has 12 divisors (see below), whose sum is σ = 27127025640. Its totient is φ = 4173388548.

The previous prime is 12520165639. The next prime is 12520165711. The reversal of 12520165662 is 26656102521.

12520165662 is a `hidden beast` number, since 12 + 520 + 1 + 65 + 6 + 62 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 347782362 + ... + 347782397.

It is an arithmetic number, because the mean of its divisors is an integer number (2260585470).

Almost surely, 2^12520165662 is an apocalyptic number.

12520165662 is an abundant number, since it is smaller than the sum of its proper divisors (14606859978).

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

12520165662 is a wasteful number, since it uses less digits than its factorization.

12520165662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695564767 (or 695564764 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 12520165662 in words is "twelve billion, five hundred twenty million, one hundred sixty-five thousand, six hundred sixty-two".