40016905452 has 18 divisors (see below), whose sum is σ = 101153844428. Its totient is φ = 13338968472.

The previous prime is 40016905441. The next prime is 40016905463. The reversal of 40016905452 is 25450961004.

40016905452 is a `hidden beast` number, since 40 + 0 + 169 + 0 + 5 + 452 = 666.

It is an interprime number because it is at equal distance from previous prime (40016905441) and next prime (40016905463).

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1111580707 = 40016905452 / (4 + 0 + 0 + 1 + 6 + 9 + 0 + 5 + 4 + 5 + 2).

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, 555790318 + ... + 555790389.

Almost surely, 2^40016905452 is an apocalyptic number.

It is an amenable number.

40016905452 is an abundant number, since it is smaller than the sum of its proper divisors (61136938976).

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

40016905452 is a wasteful number, since it uses less digits than its factorization.

40016905452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111580717 (or 1111580712 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 40016905452 in words is "forty billion, sixteen million, nine hundred five thousand, four hundred fifty-two".