21659362348 has 24 divisors (see below), whose sum is σ = 42136330880. Its totient is φ = 9674156160.

The previous prime is 21659362337. The next prime is 21659362409. The reversal of 21659362348 is 84326395612.

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, 6716553 + ... + 6719776.

Almost surely, 2^21659362348 is an apocalyptic number.

It is an amenable number.

21659362348 is a deficient number, since it is larger than the sum of its proper divisors (20476968532).

21659362348 is a wasteful number, since it uses less digits than its factorization.

21659362348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13436377 (or 13436375 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The spelling of 21659362348 in words is "twenty-one billion, six hundred fifty-nine million, three hundred sixty-two thousand, three hundred forty-eight".