162924778985 has 12 divisors (see below), whose sum is σ = 200936602188. Its totient is φ = 126817119936.

The previous prime is 162924778979. The next prime is 162924778997. The reversal of 162924778985 is 589877429261.

It can be written as a sum of positive squares in 6 ways, for example, as 126247696 + 162798531289 = 11236^2 + 403483^2 .

It is not a de Polignac number, because 162924778985 - 2⁸ = 162924778729 is a prime.

It is a super-2 number, since 2×162924778985² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11894162 + ... + 11907851.

It is an arithmetic number, because the mean of its divisors is an integer number (16744716849).

Almost surely, 2^162924778985 is an apocalyptic number.

It is an amenable number.

162924778985 is a deficient number, since it is larger than the sum of its proper divisors (38011823203).

162924778985 is an equidigital number, since it uses as much as digits as its factorization.

162924778985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23802092 (or 23802055 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 68.

The spelling of 162924778985 in words is "one hundred sixty-two billion, nine hundred twenty-four million, seven hundred seventy-eight thousand, nine hundred eighty-five".