40165120252620 has 72 divisors (see below), whose sum is σ = 132910034297040. Its totient is φ = 9736998848640.

The previous prime is 40165120252583. The next prime is 40165120252627. The reversal of 40165120252620 is 2625202156104.

40165120252620 is a `hidden beast` number, since 4 + 0 + 1 + 6 + 5 + 1 + 2 + 0 + 25 + 2 + 620 = 666.

It is a super-2 number, since 2×40165120252620² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40165120252627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10142705155 + ... + 10142709114.

It is an arithmetic number, because the mean of its divisors is an integer number (1845972698570).

Almost surely, 2^{40165120252620} is an apocalyptic number.

It is an amenable number.

40165120252620 is an abundant number, since it is smaller than the sum of its proper divisors (92744914044420).

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

40165120252620 is a wasteful number, since it uses less digits than its factorization.

40165120252620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20285414295 (or 20285414290 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 40165120252620 in words is "forty trillion, one hundred sixty-five billion, one hundred twenty million, two hundred fifty-two thousand, six hundred twenty".