21653051414632 has 64 divisors (see below), whose sum is σ = 45481624752960. Its totient is φ = 9579193612800.

The previous prime is 21653051414543. The next prime is 21653051414681. The reversal of 21653051414632 is 23641415035612.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 9118663 + ... + 11245270.

It is an arithmetic number, because the mean of its divisors is an integer number (710650386765).

Almost surely, 2^{21653051414632} is an apocalyptic number.

21653051414632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21653051414632 is an abundant number, since it is smaller than the sum of its proper divisors (23828573338328).

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

21653051414632 is a wasteful number, since it uses less digits than its factorization.

21653051414632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20364274 (or 20364270 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 21653051414632 in words is "twenty-one trillion, six hundred fifty-three billion, fifty-one million, four hundred fourteen thousand, six hundred thirty-two".