6657416231631 has 16 divisors (see below), whose sum is σ = 9754197113088. Its totient is φ = 4005346635200.

The previous prime is 6657416231611. The next prime is 6657416231647. The reversal of 6657416231631 is 1361326147566.

It is a cyclic number.

It is not a de Polignac number, because 6657416231631 - 2¹³ = 6657416223439 is a prime.

It is a super-2 number, since 2×6657416231631² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6657416231611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736272435 + ... + 736281476.

It is an arithmetic number, because the mean of its divisors is an integer number (609637319568).

Almost surely, 2^{6657416231631} is an apocalyptic number.

6657416231631 is a deficient number, since it is larger than the sum of its proper divisors (3096780881457).

6657416231631 is a wasteful number, since it uses less digits than its factorization.

6657416231631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472554062.

The product of its digits is 3265920, while the sum is 51.

The spelling of 6657416231631 in words is "six trillion, six hundred fifty-seven billion, four hundred sixteen million, two hundred thirty-one thousand, six hundred thirty-one".