21333545104 has 10 divisors (see below), whose sum is σ = 41333743670. Its totient is φ = 10666772544.

The previous prime is 21333545087. The next prime is 21333545131. The reversal of 21333545104 is 40154533312.

It can be written as a sum of positive squares in only one way, i.e., 12656250000 + 8677295104 = 112500^2 + 93152^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666673269 + ... + 666673300.

It is an arithmetic number, because the mean of its divisors is an integer number (4133374367).

Almost surely, 2^21333545104 is an apocalyptic number.

It is an amenable number.

21333545104 is a deficient number, since it is larger than the sum of its proper divisors (20000198566).

21333545104 is a wasteful number, since it uses less digits than its factorization.

21333545104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333346577 (or 1333346571 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 21333545104 in words is "twenty-one billion, three hundred thirty-three million, five hundred forty-five thousand, one hundred four".