21362402641560 has 64 divisors (see below), whose sum is σ = 64090517863680. Its totient is φ = 5696346487680.

The previous prime is 21362402641549. The next prime is 21362402641589. The reversal of 21362402641560 is 6514620426312.

It is a happy number.

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, 2259076 + ... + 6915795.

It is an arithmetic number, because the mean of its divisors is an integer number (1001414341620).

Almost surely, 2^{21362402641560} is an apocalyptic number.

21362402641560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21362402641560 is an abundant number, since it is smaller than the sum of its proper divisors (42728115222120).

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

21362402641560 is a wasteful number, since it uses less digits than its factorization.

21362402641560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9194288 (or 9194284 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 21362402641560 in words is "twenty-one trillion, three hundred sixty-two billion, four hundred two million, six hundred forty-one thousand, five hundred sixty".