40364599661 has 8 divisors (see below), whose sum is σ = 40494770400. Its totient is φ = 40234479120.

The previous prime is 40364599573. The next prime is 40364599669. The reversal of 40364599661 is 16699546304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40364599661 - 2²² = 40360405357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40364599669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2234855 + ... + 2252843.

It is an arithmetic number, because the mean of its divisors is an integer number (5061846300).

Almost surely, 2^40364599661 is an apocalyptic number.

It is an amenable number.

40364599661 is a deficient number, since it is larger than the sum of its proper divisors (130170739).

40364599661 is a wasteful number, since it uses less digits than its factorization.

40364599661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25099.

The product of its (nonzero) digits is 4199040, while the sum is 53.

The spelling of 40364599661 in words is "forty billion, three hundred sixty-four million, five hundred ninety-nine thousand, six hundred sixty-one".