20871512626152 has 32 divisors (see below), whose sum is σ = 52807441589280. Its totient is φ = 6873349538880.

The previous prime is 20871512626121. The next prime is 20871512626193. The reversal of 20871512626152 is 25162621517802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5238831499 + ... + 5238835482.

It is an arithmetic number, because the mean of its divisors is an integer number (1650232549665).

Almost surely, 2^{20871512626152} is an apocalyptic number.

It is an amenable number.

20871512626152 is an abundant number, since it is smaller than the sum of its proper divisors (31935928963128).

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

20871512626152 is a wasteful number, since it uses less digits than its factorization.

20871512626152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10477667073 (or 10477667069 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 20871512626152 in words is "twenty trillion, eight hundred seventy-one billion, five hundred twelve million, six hundred twenty-six thousand, one hundred fifty-two".