40166441290 has 12 divisors (see below), whose sum is σ = 72300735126. Its totient is φ = 16066323008.

The previous prime is 40166441269. The next prime is 40166441309. The reversal of 40166441290 is 9214466104.

It can be written as a sum of positive squares in 3 ways, for example, as 8354508409 + 31811932881 = 91403^2 + 178359^2 .

It is a super-2 number, since 2×40166441290² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 602082 + ... + 665458.

Almost surely, 2^40166441290 is an apocalyptic number.

40166441290 is a deficient number, since it is larger than the sum of its proper divisors (32134293836).

40166441290 is an frugal number, since it uses more digits than its factorization.

40166441290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126761 (or 63384 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 40166441290 in words is "forty billion, one hundred sixty-six million, four hundred forty-one thousand, two hundred ninety".