431661351141256 has 32 divisors (see below), whose sum is σ = 810916318560600. Its totient is φ = 215417053877760.

The previous prime is 431661351141203. The next prime is 431661351141271. The reversal of 431661351141256 is 652141153166134.

It can be written as a sum of positive squares in 4 ways, for example, as 304679329064356 + 126982022076900 = 17455066^2 + 11268630^2 .

It is a super-2 number, since 2×431661351141256² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60288450 + ... + 67067278.

Almost surely, 2^{431661351141256} is an apocalyptic number.

It is an amenable number.

431661351141256 is a deficient number, since it is larger than the sum of its proper divisors (379254967419344).

431661351141256 is a wasteful number, since it uses less digits than its factorization.

431661351141256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6794089 (or 6794085 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 49.

The spelling of 431661351141256 in words is "four hundred thirty-one trillion, six hundred sixty-one billion, three hundred fifty-one million, one hundred forty-one thousand, two hundred fifty-six".