40166794867 has 16 divisors (see below), whose sum is σ = 41464714144. Its totient is φ = 38890368000.

The previous prime is 40166794861. The next prime is 40166794919. The reversal of 40166794867 is 76849766104.

It is a cyclic number.

It is not a de Polignac number, because 40166794867 - 2³ = 40166794859 is a prime.

It is a super-2 number, since 2×40166794867² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40166794861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7603267 + ... + 7608547.

It is an arithmetic number, because the mean of its divisors is an integer number (2591544634).

Almost surely, 2^40166794867 is an apocalyptic number.

40166794867 is a deficient number, since it is larger than the sum of its proper divisors (1297919277).

40166794867 is a wasteful number, since it uses less digits than its factorization.

40166794867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7270.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 40166794867 in words is "forty billion, one hundred sixty-six million, seven hundred ninety-four thousand, eight hundred sixty-seven".