21346366352 has 40 divisors (see below), whose sum is σ = 42077223552. Its totient is φ = 10488067200.

The previous prime is 21346366339. The next prime is 21346366367. The reversal of 21346366352 is 25366364312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054793 + ... + 1074839.

Almost surely, 2^21346366352 is an apocalyptic number.

It is an amenable number.

21346366352 is a deficient number, since it is larger than the sum of its proper divisors (20730857200).

21346366352 is a wasteful number, since it uses less digits than its factorization.

21346366352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21207 (or 21201 counting only the distinct ones).

The product of its digits is 466560, while the sum is 41.

The spelling of 21346366352 in words is "twenty-one billion, three hundred forty-six million, three hundred sixty-six thousand, three hundred fifty-two".