161207118429 has 16 divisors (see below), whose sum is σ = 246020595840. Its totient is φ = 91978983360.

The previous prime is 161207118409. The next prime is 161207118431. The reversal of 161207118429 is 924811702161.

It is not a de Polignac number, because 161207118429 - 2¹⁶ = 161207052893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161207118409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5792874 + ... + 5820635.

It is an arithmetic number, because the mean of its divisors is an integer number (15376287240).

Almost surely, 2^161207118429 is an apocalyptic number.

It is an amenable number.

161207118429 is a deficient number, since it is larger than the sum of its proper divisors (84813477411).

161207118429 is a wasteful number, since it uses less digits than its factorization.

161207118429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11614180.

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 161207118429 in words is "one hundred sixty-one billion, two hundred seven million, one hundred eighteen thousand, four hundred twenty-nine".