12652521555 has 16 divisors (see below), whose sum is σ = 20433233664. Its totient is φ = 6684945120.

The previous prime is 12652521547. The next prime is 12652521571. The reversal of 12652521555 is 55512525621.

It is not a de Polignac number, because 12652521555 - 2³ = 12652521547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3939991 + ... + 3943200.

It is an arithmetic number, because the mean of its divisors is an integer number (1277077104).

Almost surely, 2^12652521555 is an apocalyptic number.

12652521555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12652521555 is a deficient number, since it is larger than the sum of its proper divisors (7780712109).

12652521555 is a wasteful number, since it uses less digits than its factorization.

12652521555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7883306.

The product of its digits is 150000, while the sum is 39.

The spelling of 12652521555 in words is "twelve billion, six hundred fifty-two million, five hundred twenty-one thousand, five hundred fifty-five".