1345441163631 has 12 divisors (see below), whose sum is σ = 1875309298968. Its totient is φ = 857962480144.

The previous prime is 1345441163581. The next prime is 1345441163701. The reversal of 1345441163631 is 1363611445431.

It is a happy number.

It is not a de Polignac number, because 1345441163631 - 2¹⁴ = 1345441147247 is a prime.

It is a super-2 number, since 2×1345441163631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345441163431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423892920 + ... + 423896093.

It is an arithmetic number, because the mean of its divisors is an integer number (156275774914).

Almost surely, 2^{1345441163631} is an apocalyptic number.

1345441163631 is a deficient number, since it is larger than the sum of its proper divisors (529868135337).

1345441163631 is an equidigital number, since it uses as much as digits as its factorization.

1345441163631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847789062 (or 847789039 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The spelling of 1345441163631 in words is "one trillion, three hundred forty-five billion, four hundred forty-one million, one hundred sixty-three thousand, six hundred thirty-one".