40256166413 has 16 divisors (see below), whose sum is σ = 43546636800. Its totient is φ = 37068769536.

The previous prime is 40256166409. The next prime is 40256166437. The reversal of 40256166413 is 31466165204.

It is a cyclic number.

It is not a de Polignac number, because 40256166413 - 2² = 40256166409 is a prime.

It is a super-2 number, since 2×40256166413² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40256166443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2759663 + ... + 2774211.

It is an arithmetic number, because the mean of its divisors is an integer number (2721664800).

Almost surely, 2^40256166413 is an apocalyptic number.

It is an amenable number.

40256166413 is a deficient number, since it is larger than the sum of its proper divisors (3290470387).

40256166413 is a wasteful number, since it uses less digits than its factorization.

40256166413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18076.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 40256166413 in words is "forty billion, two hundred fifty-six million, one hundred sixty-six thousand, four hundred thirteen".