162906793581 has 16 divisors (see below), whose sum is σ = 254948084864. Its totient is φ = 90573660864.

The previous prime is 162906793561. The next prime is 162906793583. The reversal of 162906793581 is 185397609261.

It is not a de Polignac number, because 162906793581 - 2⁷ = 162906793453 is a prime.

It is a super-2 number, since 2×162906793581² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162906793583) 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, 104829850 + ... + 104831403.

It is an arithmetic number, because the mean of its divisors is an integer number (15934255304).

Almost surely, 2^162906793581 is an apocalyptic number.

It is an amenable number.

162906793581 is a deficient number, since it is larger than the sum of its proper divisors (92041291283).

162906793581 is a wasteful number, since it uses less digits than its factorization.

162906793581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209661300.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The spelling of 162906793581 in words is "one hundred sixty-two billion, nine hundred six million, seven hundred ninety-three thousand, five hundred eighty-one".