21602132548 has 12 divisors (see below), whose sum is σ = 38336179392. Its totient is φ = 10648938440.

The previous prime is 21602132537. The next prime is 21602132609. The reversal of 21602132548 is 84523120612.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38031640 + ... + 38032207.

It is an arithmetic number, because the mean of its divisors is an integer number (3194681616).

Almost surely, 2^21602132548 is an apocalyptic number.

It is an amenable number.

21602132548 is a deficient number, since it is larger than the sum of its proper divisors (16734046844).

21602132548 is a wasteful number, since it uses less digits than its factorization.

21602132548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76063922 (or 76063920 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 21602132548 in words is "twenty-one billion, six hundred two million, one hundred thirty-two thousand, five hundred forty-eight".