21552034148 has 24 divisors (see below), whose sum is σ = 38963339520. Its totient is φ = 10420198560.

The previous prime is 21552034123. The next prime is 21552034151. The reversal of 21552034148 is 84143025512.

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, 91358 + ... + 226826.

It is an arithmetic number, because the mean of its divisors is an integer number (1623472480).

Almost surely, 2^21552034148 is an apocalyptic number.

It is an amenable number.

21552034148 is a deficient number, since it is larger than the sum of its proper divisors (17411305372).

21552034148 is a wasteful number, since it uses less digits than its factorization.

21552034148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136787 (or 136785 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 21552034148 in words is "twenty-one billion, five hundred fifty-two million, thirty-four thousand, one hundred forty-eight".