55645142740 has 48 divisors (see below), whose sum is σ = 127495638144. Its totient is φ = 20231792000.

The previous prime is 55645142731. The next prime is 55645142779. The reversal of 55645142740 is 4724154655.

It is a congruent number.

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, 2220762 + ... + 2245678.

It is an arithmetic number, because the mean of its divisors is an integer number (2656159128).

Almost surely, 2^55645142740 is an apocalyptic number.

It is an amenable number.

55645142740 is an abundant number, since it is smaller than the sum of its proper divisors (71850495404).

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

55645142740 is a wasteful number, since it uses less digits than its factorization.

55645142740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35088 (or 35086 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 43.

The spelling of 55645142740 in words is "fifty-five billion, six hundred forty-five million, one hundred forty-two thousand, seven hundred forty".