161498734463 has 16 divisors (see below), whose sum is σ = 178706842272. Its totient is φ = 144714240000.

The previous prime is 161498734451. The next prime is 161498734483. The reversal of 161498734463 is 364437894161.

It is not a de Polignac number, because 161498734463 - 2¹⁴ = 161498718079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161498734399 and 161498734408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161498734483) 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, 1222793 + ... + 1348413.

It is an arithmetic number, because the mean of its divisors is an integer number (11169177642).

Almost surely, 2^161498734463 is an apocalyptic number.

161498734463 is a deficient number, since it is larger than the sum of its proper divisors (17208107809).

161498734463 is a wasteful number, since it uses less digits than its factorization.

161498734463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127306.

The product of its digits is 10450944, while the sum is 56.

The spelling of 161498734463 in words is "one hundred sixty-one billion, four hundred ninety-eight million, seven hundred thirty-four thousand, four hundred sixty-three".