55446738666671 has 32 divisors (see below), whose sum is σ = 64347039966720. Its totient is φ = 47246366361600.

The previous prime is 55446738666667. The next prime is 55446738666677. The reversal of 55446738666671 is 17666683764455.

It is a cyclic number.

It is not a de Polignac number, because 55446738666671 - 2² = 55446738666667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55446738666677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65894915 + ... + 66731051.

It is an arithmetic number, because the mean of its divisors is an integer number (2010844998960).

Almost surely, 2^{55446738666671} is an apocalyptic number.

55446738666671 is a deficient number, since it is larger than the sum of its proper divisors (8900301300049).

55446738666671 is a wasteful number, since it uses less digits than its factorization.

55446738666671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839535.

The product of its digits is 3657830400, while the sum is 74.

The spelling of 55446738666671 in words is "fifty-five trillion, four hundred forty-six billion, seven hundred thirty-eight million, six hundred sixty-six thousand, six hundred seventy-one".