53661145432 has 32 divisors (see below), whose sum is σ = 102040177680. Its totient is φ = 26450772480.

The previous prime is 53661145427. The next prime is 53661145469. The reversal of 53661145432 is 23454116635.

53661145432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 1311963 + ... + 1352245.

Almost surely, 2^53661145432 is an apocalyptic number.

It is an amenable number.

53661145432 is a deficient number, since it is larger than the sum of its proper divisors (48379032248).

53661145432 is a wasteful number, since it uses less digits than its factorization.

53661145432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42643 (or 42639 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The spelling of 53661145432 in words is "fifty-three billion, six hundred sixty-one million, one hundred forty-five thousand, four hundred thirty-two".