40165564 has 12 divisors (see below), whose sum is σ = 70361704. Its totient is φ = 20062224.

The previous prime is 40165561. The next prime is 40165591. The reversal of 40165564 is 46556104.

It is a super-3 number, since 3×40165564³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40165561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222 + ... + 8965.

Almost surely, 2^40165564 is an apocalyptic number.

It is an amenable number.

40165564 is a deficient number, since it is larger than the sum of its proper divisors (30196140).

40165564 is a wasteful number, since it uses less digits than its factorization.

40165564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10284 (or 10282 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 40165564 is about 6337.6307876051. The cubic root of 40165564 is about 342.4663905785.

The spelling of 40165564 in words is "forty million, one hundred sixty-five thousand, five hundred sixty-four".