40664351415 has 8 divisors (see below), whose sum is σ = 65062962288. Its totient is φ = 21687654080.

The previous prime is 40664351381. The next prime is 40664351467. The reversal of 40664351415 is 51415346604.

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

It is not a de Polignac number, because 40664351415 - 2⁸ = 40664351159 is a prime.

It is a super-2 number, since 2×40664351415² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355478366 + ... + 1355478395.

It is an arithmetic number, because the mean of its divisors is an integer number (8132870286).

Almost surely, 2^40664351415 is an apocalyptic number.

40664351415 is a deficient number, since it is larger than the sum of its proper divisors (24398610873).

40664351415 is a wasteful number, since it uses less digits than its factorization.

40664351415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710956769.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 40664351415 in words is "forty billion, six hundred sixty-four million, three hundred fifty-one thousand, four hundred fifteen".