161388667294 has 16 divisors (see below), whose sum is σ = 253016484480. Its totient is φ = 77061176280.

The previous prime is 161388667259. The next prime is 161388667309. The reversal of 161388667294 is 492766883161.

It is a happy number.

161388667294 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2805492 + ... + 2862439.

It is an arithmetic number, because the mean of its divisors is an integer number (15813530280).

Almost surely, 2^161388667294 is an apocalyptic number.

161388667294 is a deficient number, since it is larger than the sum of its proper divisors (91627817186).

161388667294 is a wasteful number, since it uses less digits than its factorization.

161388667294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5668575.

The product of its digits is 20901888, while the sum is 61.

The spelling of 161388667294 in words is "one hundred sixty-one billion, three hundred eighty-eight million, six hundred sixty-seven thousand, two hundred ninety-four".