1646256160131 has 12 divisors (see below), whose sum is σ = 2412694979016. Its totient is φ = 997731005920.

The previous prime is 1646256160123. The next prime is 1646256160139. The reversal of 1646256160131 is 1310616526461.

It is an interprime number because it is at equal distance from previous prime (1646256160123) and next prime (1646256160139).

It is not a de Polignac number, because 1646256160131 - 2³ = 1646256160123 is a prime.

It is a super-2 number, since 2×1646256160131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1646256160139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2267570106 + ... + 2267570831.

It is an arithmetic number, because the mean of its divisors is an integer number (201057914918).

Almost surely, 2^{1646256160131} is an apocalyptic number.

1646256160131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1646256160131 is a deficient number, since it is larger than the sum of its proper divisors (766438818885).

1646256160131 is a wasteful number, since it uses less digits than its factorization.

1646256160131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535140962 (or 4535140951 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 1646256160131 in words is "one trillion, six hundred forty-six billion, two hundred fifty-six million, one hundred sixty thousand, one hundred thirty-one".