40663264165021 has 8 divisors (see below), whose sum is σ = 42803707618080. Its totient is φ = 38522847877488.

The previous prime is 40663264164997. The next prime is 40663264165039. The reversal of 40663264165021 is 12056146236604.

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 40663264165021 - 2³¹ = 40661116681373 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 (40663264175021) 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, 3682351 + ... + 9740956.

It is an arithmetic number, because the mean of its divisors is an integer number (5350463452260).

Almost surely, 2^{40663264165021} is an apocalyptic number.

It is an amenable number.

40663264165021 is a deficient number, since it is larger than the sum of its proper divisors (2140443453059).

40663264165021 is a wasteful number, since it uses less digits than its factorization.

40663264165021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13582763.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 40663264165021 in words is "forty trillion, six hundred sixty-three billion, two hundred sixty-four million, one hundred sixty-five thousand, twenty-one".