45165560 has 64 divisors (see below), whose sum is σ = 115706880. Its totient is φ = 15706240.

The previous prime is 45165551. The next prime is 45165563. The reversal of 45165560 is 6556154.

It is a super-2 number, since 2×45165560² = 4079855620227200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45165563) 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, 7889 + ... + 12351.

It is an arithmetic number, because the mean of its divisors is an integer number (1807920).

Almost surely, 2^45165560 is an apocalyptic number.

45165560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45165560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57853440).

45165560 is an abundant number, since it is smaller than the sum of its proper divisors (70541320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45165560 is a wasteful number, since it uses less digits than its factorization.

45165560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508 (or 4504 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 45165560 is about 6720.5327169801. The cubic root of 45165560 is about 356.1250034445.

The spelling of 45165560 in words is "forty-five million, one hundred sixty-five thousand, five hundred sixty".