40012215070664 has 16 divisors (see below), whose sum is σ = 75023078841600. Its totient is φ = 20006060712912.

The previous prime is 40012215070601. The next prime is 40012215070769. The reversal of 40012215070664 is 46607051221004.

It is a happy number.

It is a super-2 number, since 2×40012215070664² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2077724 + ... + 9183755.

It is an arithmetic number, because the mean of its divisors is an integer number (4688942427600).

Almost surely, 2^{40012215070664} is an apocalyptic number.

It is an amenable number.

40012215070664 is a deficient number, since it is larger than the sum of its proper divisors (35010863770936).

40012215070664 is a wasteful number, since it uses less digits than its factorization.

40012215070664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11705612 (or 11705608 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

Adding to 40012215070664 its reverse (46607051221004), we get a palindrome (86619266291668).

The spelling of 40012215070664 in words is "forty trillion, twelve billion, two hundred fifteen million, seventy thousand, six hundred sixty-four".