6557055006637 has 4 divisors (see below), whose sum is σ = 6557086522300. Its totient is φ = 6557023490976.

The previous prime is 6557055006587. The next prime is 6557055006661. The reversal of 6557055006637 is 7366005507556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1495481964201 + 5061573042436 = 1222899^2 + 2249794^2 .

It is a cyclic number.

It is not a de Polignac number, because 6557055006637 - 2³⁹ = 6007299192749 is a prime.

It is a super-2 number, since 2×6557055006637² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6557055016637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15443658 + ... + 15862555.

It is an arithmetic number, because the mean of its divisors is an integer number (1639271630575).

Almost surely, 2^{6557055006637} is an apocalyptic number.

It is an amenable number.

6557055006637 is a deficient number, since it is larger than the sum of its proper divisors (31515663).

6557055006637 is a wasteful number, since it uses less digits than its factorization.

6557055006637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31515662.

The product of its (nonzero) digits is 19845000, while the sum is 55.

The spelling of 6557055006637 in words is "six trillion, five hundred fifty-seven billion, fifty-five million, six thousand, six hundred thirty-seven".