40166979590 has 16 divisors (see below), whose sum is σ = 72347266800. Its totient is φ = 16056413280.

The previous prime is 40166979577. The next prime is 40166979599. The reversal of 40166979590 is 9597966104.

It is a super-2 number, since 2×40166979590² (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 (40166979599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1281056 + ... + 1312035.

It is an arithmetic number, because the mean of its divisors is an integer number (4521704175).

Almost surely, 2^40166979590 is an apocalyptic number.

40166979590 is a deficient number, since it is larger than the sum of its proper divisors (32180287210).

40166979590 is a wasteful number, since it uses less digits than its factorization.

40166979590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594647.

The product of its (nonzero) digits is 3674160, while the sum is 56.

The spelling of 40166979590 in words is "forty billion, one hundred sixty-six million, nine hundred seventy-nine thousand, five hundred ninety".