21650573643032 has 32 divisors (see below), whose sum is σ = 40787516407680. Its totient is φ = 10773927962880.

The previous prime is 21650573643029. The next prime is 21650573643043. The reversal of 21650573643032 is 23034637505612.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5254982 + ... + 8421162.

It is an arithmetic number, because the mean of its divisors is an integer number (1274609887740).

Almost surely, 2^{21650573643032} is an apocalyptic number.

It is an amenable number.

21650573643032 is a deficient number, since it is larger than the sum of its proper divisors (19136942764648).

21650573643032 is a wasteful number, since it uses less digits than its factorization.

21650573643032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170243 (or 3170239 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 47.

The spelling of 21650573643032 in words is "twenty-one trillion, six hundred fifty billion, five hundred seventy-three million, six hundred forty-three thousand, thirty-two".