161416215496 has 8 divisors (see below), whose sum is σ = 302655404070. Its totient is φ = 80708107744.

The previous prime is 161416215437. The next prime is 161416215497. The reversal of 161416215496 is 694512614161.

It can be written as a sum of positive squares in only one way, i.e., 133141792996 + 28274422500 = 364886^2 + 168150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×161416215496² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (161416215497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10088513461 + ... + 10088513476.

Almost surely, 2^161416215496 is an apocalyptic number.

It is an amenable number.

161416215496 is a deficient number, since it is larger than the sum of its proper divisors (141239188574).

161416215496 is a wasteful number, since it uses less digits than its factorization.

161416215496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20177026943 (or 20177026939 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The spelling of 161416215496 in words is "one hundred sixty-one billion, four hundred sixteen million, two hundred fifteen thousand, four hundred ninety-six".