40159616599 has 4 divisors (see below), whose sum is σ = 40218416136. Its totient is φ = 40100817064.

The previous prime is 40159616587. The next prime is 40159616633. The reversal of 40159616599 is 99561695104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40159616599 - 2⁹ = 40159616087 is a prime.

It is a super-3 number, since 3×40159616599³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40159646599) 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, 29398744 + ... + 29400109.

It is an arithmetic number, because the mean of its divisors is an integer number (10054604034).

Almost surely, 2^40159616599 is an apocalyptic number.

40159616599 is a deficient number, since it is larger than the sum of its proper divisors (58799537).

40159616599 is an equidigital number, since it uses as much as digits as its factorization.

40159616599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58799536.

The product of its (nonzero) digits is 2624400, while the sum is 55.

The spelling of 40159616599 in words is "forty billion, one hundred fifty-nine million, six hundred sixteen thousand, five hundred ninety-nine".