21315066424332 has 24 divisors (see below), whose sum is σ = 49738451095872. Its totient is φ = 7104551269200.

The previous prime is 21315066424303. The next prime is 21315066424381. The reversal of 21315066424332 is 23342466051312.

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, 58670394 + ... + 59032577.

It is an arithmetic number, because the mean of its divisors is an integer number (2072435462328).

Almost surely, 2^{21315066424332} is an apocalyptic number.

It is an amenable number.

21315066424332 is an abundant number, since it is smaller than the sum of its proper divisors (28423384671540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21315066424332 is a wasteful number, since it uses less digits than its factorization.

21315066424332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117718069 (or 117718067 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 21315066424332 in words is "twenty-one trillion, three hundred fifteen billion, sixty-six million, four hundred twenty-four thousand, three hundred thirty-two".