6556331135431 has 16 divisors (see below), whose sum is σ = 8187728064768. Its totient is φ = 5100328872000.

The previous prime is 6556331135411. The next prime is 6556331135441. The reversal of 6556331135431 is 1345311336556.

It is a cyclic number.

It is not a de Polignac number, because 6556331135431 - 2¹¹ = 6556331133383 is a prime.

It is a super-2 number, since 2×6556331135431² (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 (6556331135411) 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, 70791625 + ... + 70884178.

It is an arithmetic number, because the mean of its divisors is an integer number (511733004048).

Almost surely, 2^{6556331135431} is an apocalyptic number.

6556331135431 is a deficient number, since it is larger than the sum of its proper divisors (1631396929337).

6556331135431 is a wasteful number, since it uses less digits than its factorization.

6556331135431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141676422.

The product of its digits is 1458000, while the sum is 46.

The spelling of 6556331135431 in words is "six trillion, five hundred fifty-six billion, three hundred thirty-one million, one hundred thirty-five thousand, four hundred thirty-one".