55737544661 has 8 divisors (see below), whose sum is σ = 58202228160. Its totient is φ = 53276303872.

The previous prime is 55737544651. The next prime is 55737544693. The reversal of 55737544661 is 16644573755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55737544661 - 2¹⁴ = 55737528277 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 (55737544651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827555 + ... + 892368.

It is an arithmetic number, because the mean of its divisors is an integer number (7275278520).

Almost surely, 2^55737544661 is an apocalyptic number.

It is an amenable number.

55737544661 is a deficient number, since it is larger than the sum of its proper divisors (2464683499).

55737544661 is a wasteful number, since it uses less digits than its factorization.

55737544661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721355.

The product of its digits is 10584000, while the sum is 53.

The spelling of 55737544661 in words is "fifty-five billion, seven hundred thirty-seven million, five hundred forty-four thousand, six hundred sixty-one".