161408718429 has 16 divisors (see below), whose sum is σ = 245988567552. Its totient is φ = 92221393968.

The previous prime is 161408718409. The next prime is 161408718481. The reversal of 161408718429 is 924817804161.

It is not a de Polignac number, because 161408718429 - 2⁸ = 161408718173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161408718409) 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, 342319 + ... + 663324.

It is an arithmetic number, because the mean of its divisors is an integer number (15374285472).

Almost surely, 2^161408718429 is an apocalyptic number.

It is an amenable number.

161408718429 is a deficient number, since it is larger than the sum of its proper divisors (84579849123).

161408718429 is a wasteful number, since it uses less digits than its factorization.

161408718429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013296.

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 161408718429 in words is "one hundred sixty-one billion, four hundred eight million, seven hundred eighteen thousand, four hundred twenty-nine".