21060067023960 has 64 divisors (see below), whose sum is σ = 63247342963680. Its totient is φ = 5610049704960.

The previous prime is 21060067023943. The next prime is 21060067024019. The reversal of 21060067023960 is 6932076006012.

It is a super-2 number, since 2×21060067023960² (a number of 27 digits) contains 22 as substring.

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, 93139237 + ... + 93365076.

Almost surely, 2^{21060067023960} is an apocalyptic number.

21060067023960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21060067023960 is an abundant number, since it is smaller than the sum of its proper divisors (42187275939720).

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

21060067023960 is a wasteful number, since it uses less digits than its factorization.

21060067023960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186505268 (or 186505264 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 21060067023960 in words is "twenty-one trillion, sixty billion, sixty-seven million, twenty-three thousand, nine hundred sixty".