736165773225 has 18 divisors (see below), whose sum is σ = 1318554696446. Its totient is φ = 392621745600.

The previous prime is 736165773193. The next prime is 736165773241. The reversal of 736165773225 is 522377561637.

736165773225 is a `hidden beast` number, since 7 + 3 + 6 + 16 + 577 + 32 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 11120335209 + 725045438016 = 105453^2 + 851496^2 .

It is not a de Polignac number, because 736165773225 - 2⁵ = 736165773193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1635923716 + ... + 1635924165.

Almost surely, 2^736165773225 is an apocalyptic number.

736165773225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

736165773225 is a deficient number, since it is larger than the sum of its proper divisors (582388923221).

736165773225 is a wasteful number, since it uses less digits than its factorization.

736165773225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271847897 (or 3271847889 counting only the distinct ones).

The product of its digits is 11113200, while the sum is 54.

The spelling of 736165773225 in words is "seven hundred thirty-six billion, one hundred sixty-five million, seven hundred seventy-three thousand, two hundred twenty-five".