1631162402255 has 8 divisors (see below), whose sum is σ = 1982172033600. Its totient is φ = 1288411821216.

The previous prime is 1631162402251. The next prime is 1631162402263. The reversal of 1631162402255 is 5522042611361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1631162402255 - 2² = 1631162402251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1631162402251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2064762140 + ... + 2064762929.

It is an arithmetic number, because the mean of its divisors is an integer number (247771504200).

Almost surely, 2^{1631162402255} is an apocalyptic number.

1631162402255 is a deficient number, since it is larger than the sum of its proper divisors (351009631345).

1631162402255 is an equidigital number, since it uses as much as digits as its factorization.

1631162402255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4129525153.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 1631162402255 in words is "one trillion, six hundred thirty-one billion, one hundred sixty-two million, four hundred two thousand, two hundred fifty-five".