40165738163420 has 48 divisors (see below), whose sum is σ = 85694159791296. Its totient is φ = 15810729984000.

The previous prime is 40165738163381. The next prime is 40165738163443. The reversal of 40165738163420 is 2436183756104.

It is a super-2 number, since 2×40165738163420² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25373861 + ... + 26910300.

It is an arithmetic number, because the mean of its divisors is an integer number (1785294995652).

Almost surely, 2^{40165738163420} is an apocalyptic number.

It is an amenable number.

40165738163420 is an abundant number, since it is smaller than the sum of its proper divisors (45528421627876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40165738163420 is a wasteful number, since it uses less digits than its factorization.

40165738163420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52284782 (or 52284780 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 40165738163420 in words is "forty trillion, one hundred sixty-five billion, seven hundred thirty-eight million, one hundred sixty-three thousand, four hundred twenty".