40185618185052 has 48 divisors (see below), whose sum is σ = 105950782425600. Its totient is φ = 13168168668720.

The previous prime is 40185618185033. The next prime is 40185618185081. The reversal of 40185618185052 is 25058181658104.

It is a happy number.

40185618185052 is a `hidden beast` number, since 4 + 0 + 1 + 8 + 5 + 618 + 18 + 5 + 0 + 5 + 2 = 666.

It is a super-2 number, since 2×40185618185052² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 40185618185052.

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, 3153290724 + ... + 3153303467.

It is an arithmetic number, because the mean of its divisors is an integer number (2207307967200).

Almost surely, 2^{40185618185052} is an apocalyptic number.

It is an amenable number.

40185618185052 is an abundant number, since it is smaller than the sum of its proper divisors (65765164240548).

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

40185618185052 is a wasteful number, since it uses less digits than its factorization.

40185618185052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6306594263 (or 6306594255 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 54.

The spelling of 40185618185052 in words is "forty trillion, one hundred eighty-five billion, six hundred eighteen million, one hundred eighty-five thousand, fifty-two".