40015165000 has 40 divisors (see below), whose sum is σ = 93755543310. Its totient is φ = 16006064000.

The previous prime is 40015164979. The next prime is 40015165037. The reversal of 40015165000 is 56151004.

It can be written as a sum of positive squares in 5 ways, for example, as 1894164484 + 38121000516 = 43522^2 + 195246^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3996517 + ... + 4006516.

Almost surely, 2^40015165000 is an apocalyptic number.

40015165000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40015165000 is an abundant number, since it is smaller than the sum of its proper divisors (53740378310).

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

40015165000 is an equidigital number, since it uses as much as digits as its factorization.

40015165000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8003059 (or 8003040 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The spelling of 40015165000 in words is "forty billion, fifteen million, one hundred sixty-five thousand".