21332421418152 has 128 divisors (see below), whose sum is σ = 62406457344000. Its totient is φ = 6017765425920.

The previous prime is 21332421418151. The next prime is 21332421418193. The reversal of 21332421418152 is 25181412423312.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 21332421418152.

It is not an unprimeable number, because it can be changed into a prime (21332421418151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57857952 + ... + 58225487.

It is an arithmetic number, because the mean of its divisors is an integer number (487550448000).

Almost surely, 2^{21332421418152} is an apocalyptic number.

It is an amenable number.

21332421418152 is an abundant number, since it is smaller than the sum of its proper divisors (41074035925848).

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

21332421418152 is a wasteful number, since it uses less digits than its factorization.

21332421418152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116083511 (or 116083507 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The spelling of 21332421418152 in words is "twenty-one trillion, three hundred thirty-two billion, four hundred twenty-one million, four hundred eighteen thousand, one hundred fifty-two".