21455442425132 has 48 divisors (see below), whose sum is σ = 38833643993088. Its totient is φ = 10361466984960.

The previous prime is 21455442425083. The next prime is 21455442425161. The reversal of 21455442425132 is 23152424455412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890366108 + ... + 890390204.

It is an arithmetic number, because the mean of its divisors is an integer number (809034249856).

Almost surely, 2^{21455442425132} is an apocalyptic number.

It is an amenable number.

21455442425132 is a deficient number, since it is larger than the sum of its proper divisors (17378201567956).

21455442425132 is a wasteful number, since it uses less digits than its factorization.

21455442425132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37806 (or 37804 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 44.

The spelling of 21455442425132 in words is "twenty-one trillion, four hundred fifty-five billion, four hundred forty-two million, four hundred twenty-five thousand, one hundred thirty-two".