2161437679175 has 12 divisors (see below), whose sum is σ = 2745553033776. Its totient is φ = 1686975748800.

The previous prime is 2161437679171. The next prime is 2161437679183. The reversal of 2161437679175 is 5719767341612.

It is not a de Polignac number, because 2161437679175 - 2² = 2161437679171 is a prime.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161437679171) 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, 1054358819 + ... + 1054360868.

It is an arithmetic number, because the mean of its divisors is an integer number (228796086148).

Almost surely, 2^{2161437679175} is an apocalyptic number.

2161437679175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2161437679175 is a deficient number, since it is larger than the sum of its proper divisors (584115354601).

2161437679175 is a wasteful number, since it uses less digits than its factorization.

2161437679175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108719738 (or 2108719733 counting only the distinct ones).

The product of its digits is 13335840, while the sum is 59.

The spelling of 2161437679175 in words is "two trillion, one hundred sixty-one billion, four hundred thirty-seven million, six hundred seventy-nine thousand, one hundred seventy-five".