20646425532610 has 32 divisors (see below), whose sum is σ = 37990053222912. Its totient is φ = 8075237609280.

The previous prime is 20646425532541. The next prime is 20646425532641. The reversal of 20646425532610 is 1623552464602.

It is a super-2 number, since 2×20646425532610² (a number of 27 digits) contains 22 as substring.

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, 20202822 + ... + 21200161.

It is an arithmetic number, because the mean of its divisors is an integer number (1187189163216).

Almost surely, 2^{20646425532610} is an apocalyptic number.

20646425532610 is a deficient number, since it is larger than the sum of its proper divisors (17343627690302).

20646425532610 is a wasteful number, since it uses less digits than its factorization.

20646425532610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41404098.

The product of its (nonzero) digits is 2073600, while the sum is 46.

The spelling of 20646425532610 in words is "twenty trillion, six hundred forty-six billion, four hundred twenty-five million, five hundred thirty-two thousand, six hundred ten".