2161107342875 has 16 divisors (see below), whose sum is σ = 2904528271008. Its totient is φ = 1595894652000.

The previous prime is 2161107342869. The next prime is 2161107342881. The reversal of 2161107342875 is 5782437011612.

It is an interprime number because it is at equal distance from previous prime (2161107342869) and next prime (2161107342881).

It is not a de Polignac number, because 2161107342875 - 2⁴ = 2161107342859 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664954481 + ... + 664957730.

It is an arithmetic number, because the mean of its divisors is an integer number (181533016938).

Almost surely, 2^{2161107342875} is an apocalyptic number.

2161107342875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2161107342875 is a deficient number, since it is larger than the sum of its proper divisors (743420928133).

2161107342875 is a wasteful number, since it uses less digits than its factorization.

2161107342875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329912239 (or 1329912229 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 2161107342875 in words is "two trillion, one hundred sixty-one billion, one hundred seven million, three hundred forty-two thousand, eight hundred seventy-five".