161516500496 has 40 divisors (see below), whose sum is σ = 337273621440. Its totient is φ = 74487851136.

The previous prime is 161516500459. The next prime is 161516500499. The reversal of 161516500496 is 694005615161.

It is not an unprimeable number, because it can be changed into a prime (161516500499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35756 + ... + 569483.

It is an arithmetic number, because the mean of its divisors is an integer number (8431840536).

Almost surely, 2^161516500496 is an apocalyptic number.

161516500496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161516500496 is an abundant number, since it is smaller than the sum of its proper divisors (175757120944).

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

161516500496 is a wasteful number, since it uses less digits than its factorization.

161516500496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606543 (or 606537 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 161516500496 in words is "one hundred sixty-one billion, five hundred sixteen million, five hundred thousand, four hundred ninety-six".