21432016760 has 64 divisors (see below), whose sum is σ = 60120990720. Its totient is φ = 6680108160.

The previous prime is 21432016751. The next prime is 21432016787. The reversal of 21432016760 is 6761023412.

It is a congruent number.

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, 3476144 + ... + 3482303.

It is an arithmetic number, because the mean of its divisors is an integer number (939390480).

Almost surely, 2^21432016760 is an apocalyptic number.

21432016760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21432016760 is an abundant number, since it is smaller than the sum of its proper divisors (38688973960).

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

21432016760 is a wasteful number, since it uses less digits than its factorization.

21432016760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6958476 (or 6958472 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 21432016760 in words is "twenty-one billion, four hundred thirty-two million, sixteen thousand, seven hundred sixty".