255631343067 has 40 divisors (see below), whose sum is σ = 397291732992. Its totient is φ = 163624633200.

The previous prime is 255631343063. The next prime is 255631343101. The reversal of 255631343067 is 760343136552.

It is a happy number.

255631343067 is a `hidden beast` number, since 2 + 5 + 5 + 631 + 3 + 4 + 3 + 0 + 6 + 7 = 666.

It is not a de Polignac number, because 255631343067 - 2² = 255631343063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255631343063) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 81909 + ... + 719702.

Almost surely, 2^255631343067 is an apocalyptic number.

255631343067 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

255631343067 is a deficient number, since it is larger than the sum of its proper divisors (141660389925).

255631343067 is a wasteful number, since it uses less digits than its factorization.

255631343067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801781 (or 801772 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 45.

The spelling of 255631343067 in words is "two hundred fifty-five billion, six hundred thirty-one million, three hundred forty-three thousand, sixty-seven".