40815166563 has 12 divisors (see below), whose sum is σ = 59010820128. Its totient is φ = 27184458960.

The previous prime is 40815166541. The next prime is 40815166589. The reversal of 40815166563 is 36566151804.

40815166563 is a `hidden beast` number, since 4 + 0 + 81 + 5 + 1 + 6 + 6 + 563 = 666.

It is not a de Polignac number, because 40815166563 - 2⁵ = 40815166531 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40815166523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2127595 + ... + 2146692.

It is an arithmetic number, because the mean of its divisors is an integer number (4917568344).

Almost surely, 2^40815166563 is an apocalyptic number.

40815166563 is a deficient number, since it is larger than the sum of its proper divisors (18195653565).

40815166563 is a wasteful number, since it uses less digits than its factorization.

40815166563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275354 (or 4275351 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 40815166563 in words is "forty billion, eight hundred fifteen million, one hundred sixty-six thousand, five hundred sixty-three".