2161461604134 has 32 divisors (see below), whose sum is σ = 4940528221440. Its totient is φ = 617554888992.

The previous prime is 2161461604123. The next prime is 2161461604163. The reversal of 2161461604134 is 4314061641612.

It is a super-2 number, since 2×2161461604134² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2161461604092 and 2161461604101.

It is a congruent number.

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, 7554072 + ... + 7834980.

It is an arithmetic number, because the mean of its divisors is an integer number (154391506920).

Almost surely, 2^{2161461604134} is an apocalyptic number.

2161461604134 is an abundant number, since it is smaller than the sum of its proper divisors (2779066617306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2161461604134 is a wasteful number, since it uses less digits than its factorization.

2161461604134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464124.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 2161461604134 in words is "two trillion, one hundred sixty-one billion, four hundred sixty-one million, six hundred four thousand, one hundred thirty-four".