21377713335000 has 160 divisors (see below), whose sum is σ = 72855247608000. Its totient is φ = 5182475920000.

The previous prime is 21377713334959. The next prime is 21377713335001. The reversal of 21377713335000 is 53331777312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21377713335001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 64615950 + ... + 64945949.

It is an arithmetic number, because the mean of its divisors is an integer number (455345297550).

Almost surely, 2^{21377713335000} is an apocalyptic number.

21377713335000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21377713335000 is an abundant number, since it is smaller than the sum of its proper divisors (51477534273000).

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

21377713335000 is a wasteful number, since it uses less digits than its factorization.

21377713335000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129561939 (or 129561920 counting only the distinct ones).

The product of its (nonzero) digits is 277830, while the sum is 42.

The spelling of 21377713335000 in words is "twenty-one trillion, three hundred seventy-seven billion, seven hundred thirteen million, three hundred thirty-five thousand".