21364162373560 has 32 divisors (see below), whose sum is σ = 49368537380160. Its totient is φ = 8314701031296.

The previous prime is 21364162373557. The next prime is 21364162373591. The reversal of 21364162373560 is 6537326146312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7217620944 + ... + 7217623903.

It is an arithmetic number, because the mean of its divisors is an integer number (1542766793130).

Almost surely, 2^{21364162373560} is an apocalyptic number.

21364162373560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21364162373560 is an abundant number, since it is smaller than the sum of its proper divisors (28004375006600).

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

21364162373560 is a wasteful number, since it uses less digits than its factorization.

21364162373560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14435244895 (or 14435244891 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 49.

The spelling of 21364162373560 in words is "twenty-one trillion, three hundred sixty-four billion, one hundred sixty-two million, three hundred seventy-three thousand, five hundred sixty".