20512206610 has 64 divisors (see below), whose sum is σ = 44078141952. Its totient is φ = 6719809536.

The previous prime is 20512206581. The next prime is 20512206653. The reversal of 20512206610 is 1660221502.

It is a super-2 number, since 2×20512206610² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1624642 + ... + 1637218.

It is an arithmetic number, because the mean of its divisors is an integer number (688720968).

Almost surely, 2^20512206610 is an apocalyptic number.

20512206610 is an abundant number, since it is smaller than the sum of its proper divisors (23565935342).

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

20512206610 is a wasteful number, since it uses less digits than its factorization.

20512206610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13627.

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 20512206610 in words is "twenty billion, five hundred twelve million, two hundred six thousand, six hundred ten".