21332654410 has 16 divisors (see below), whose sum is σ = 38430771912. Its totient is φ = 8525952000.

The previous prime is 21332654401. The next prime is 21332654423. The reversal of 21332654410 is 1445623312.

It can be written as a sum of positive squares in 4 ways, for example, as 16096250641 + 5236403769 = 126871^2 + 72363^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876111 + ... + 900130.

Almost surely, 2^21332654410 is an apocalyptic number.

21332654410 is a deficient number, since it is larger than the sum of its proper divisors (17098117502).

21332654410 is a wasteful number, since it uses less digits than its factorization.

21332654410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777449.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 21332654410 in words is "twenty-one billion, three hundred thirty-two million, six hundred fifty-four thousand, four hundred ten".