945161173636 has 27 divisors (see below), whose sum is σ = 1661747606127. Its totient is φ = 470386344960.

The previous prime is 945161173589. The next prime is 945161173637. The reversal of 945161173636 is 636371161549.

The square root of 945161173636 is 972194.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 342587796100 + 602573377536 = 585310^2 + 776256^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945161173637) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 468596500 + ... + 468598516.

Almost surely, 2^945161173636 is an apocalyptic number.

945161173636 is the 972194-th square number.

It is an amenable number.

945161173636 is a deficient number, since it is larger than the sum of its proper divisors (716586432491).

945161173636 is an frugal number, since it uses more digits than its factorization.

945161173636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4520 (or 2260 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 52.

The spelling of 945161173636 in words is "nine hundred forty-five billion, one hundred sixty-one million, one hundred seventy-three thousand, six hundred thirty-six".