40216392591 has 4 divisors (see below), whose sum is σ = 53621856792. Its totient is φ = 26810928392.

The previous prime is 40216392577. The next prime is 40216392649. The reversal of 40216392591 is 19529361204.

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 40216392591 - 2⁹ = 40216392079 is a prime.

It is a super-3 number, since 3×40216392591³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40216392521) 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, 6702732096 + ... + 6702732101.

It is an arithmetic number, because the mean of its divisors is an integer number (13405464198).

Almost surely, 2^40216392591 is an apocalyptic number.

40216392591 is a deficient number, since it is larger than the sum of its proper divisors (13405464201).

40216392591 is a wasteful number, since it uses less digits than its factorization.

40216392591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13405464200.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 40216392591 in words is "forty billion, two hundred sixteen million, three hundred ninety-two thousand, five hundred ninety-one".