45665125636 has 27 divisors (see below), whose sum is σ = 86544591861. Its totient is φ = 21073647504.

The previous prime is 45665125631. The next prime is 45665125697. The reversal of 45665125636 is 63652156654.

The square root of 45665125636 is 213694.

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

It can be written as a sum of positive squares in only one way, i.e., 6755196100 + 38909929536 = 82190^2 + 197256^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45665125636.

It is not an unprimeable number, because it can be changed into a prime (45665125631) 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, 5551935 + ... + 5560153.

Almost surely, 2^45665125636 is an apocalyptic number.

45665125636 is the 213694-th square number.

It is an amenable number.

45665125636 is a deficient number, since it is larger than the sum of its proper divisors (40879466225).

45665125636 is an frugal number, since it uses more digits than its factorization.

45665125636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16468 (or 8234 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 49.

Multiplying 45665125636 by its sum of digits (49), we get a square (2237591156164 = 1495858²).

The spelling of 45665125636 in words is "forty-five billion, six hundred sixty-five million, one hundred twenty-five thousand, six hundred thirty-six".