161472215762 has 54 divisors (see below), whose sum is σ = 288428613669. Its totient is φ = 67716483120.

The previous prime is 161472215759. The next prime is 161472215771. The reversal of 161472215762 is 267512274161.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 138063521761 + 23408694001 = 371569^2 + 152999^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=284141.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 81263333 + ... + 81265319.

Almost surely, 2^161472215762 is an apocalyptic number.

161472215762 is a deficient number, since it is larger than the sum of its proper divisors (126956397907).

161472215762 is an equidigital number, since it uses as much as digits as its factorization.

161472215762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4024 (or 2013 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The spelling of 161472215762 in words is "one hundred sixty-one billion, four hundred seventy-two million, two hundred fifteen thousand, seven hundred sixty-two".