40401616523 has 8 divisors (see below), whose sum is σ = 40453805376. Its totient is φ = 40349464000.

The previous prime is 40401616513. The next prime is 40401616553. The reversal of 40401616523 is 32561610404.

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 40401616523 - 2²⁰ = 40400567947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40401616523.

It is not an unprimeable number, because it can be changed into a prime (40401616513) 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, 2716718 + ... + 2731548.

It is an arithmetic number, because the mean of its divisors is an integer number (5056725672).

Almost surely, 2^40401616523 is an apocalyptic number.

40401616523 is a deficient number, since it is larger than the sum of its proper divisors (52188853).

40401616523 is a wasteful number, since it uses less digits than its factorization.

40401616523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18165.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 40401616523 in words is "forty billion, four hundred one million, six hundred sixteen thousand, five hundred twenty-three".