40164305247 has 128 divisors (see below), whose sum is σ = 71719603200. Its totient is φ = 22110359040.

The previous prime is 40164305227. The next prime is 40164305249. The reversal of 40164305247 is 74250346104.

40164305247 is a `hidden beast` number, since 4 + 0 + 1 + 643 + 0 + 5 + 2 + 4 + 7 = 666.

It is not a de Polignac number, because 40164305247 - 2⁶ = 40164305183 is a prime.

It is a super-2 number, since 2×40164305247² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40164305249) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17715808 + ... + 17718074.

It is an arithmetic number, because the mean of its divisors is an integer number (560309400).

Almost surely, 2^40164305247 is an apocalyptic number.

40164305247 is a deficient number, since it is larger than the sum of its proper divisors (31555297953).

40164305247 is a wasteful number, since it uses less digits than its factorization.

40164305247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 40164305247 in words is "forty billion, one hundred sixty-four million, three hundred five thousand, two hundred forty-seven".