21332555342 has 16 divisors (see below), whose sum is σ = 37169606112. Its totient is φ = 8992645920.

The previous prime is 21332555341. The next prime is 21332555359. The reversal of 21332555342 is 24355523312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332555341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12488933 + ... + 12490640.

It is an arithmetic number, because the mean of its divisors is an integer number (2323100382).

Almost surely, 2^21332555342 is an apocalyptic number.

21332555342 is a deficient number, since it is larger than the sum of its proper divisors (15837050770).

21332555342 is a wasteful number, since it uses less digits than its factorization.

21332555342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24979643.

The product of its digits is 108000, while the sum is 35.

The spelling of 21332555342 in words is "twenty-one billion, three hundred thirty-two million, five hundred fifty-five thousand, three hundred forty-two".