40665301116621 has 8 divisors (see below), whose sum is σ = 54226032475680. Its totient is φ = 27107385250992.

The previous prime is 40665301116581. The next prime is 40665301116653. The reversal of 40665301116621 is 12661110356604.

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

It is not a de Polignac number, because 40665301116621 - 2⁷ = 40665301116493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40665301116221) 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, 703839655 + ... + 703897428.

It is an arithmetic number, because the mean of its divisors is an integer number (6778254059460).

Almost surely, 2^{40665301116621} is an apocalyptic number.

It is an amenable number.

40665301116621 is a deficient number, since it is larger than the sum of its proper divisors (13560731359059).

40665301116621 is a wasteful number, since it uses less digits than its factorization.

40665301116621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407746715.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 40665301116621 in words is "forty trillion, six hundred sixty-five billion, three hundred one million, one hundred sixteen thousand, six hundred twenty-one".