40188516956 has 12 divisors (see below), whose sum is σ = 80377033968. Its totient is φ = 17223650112.

The previous prime is 40188516947. The next prime is 40188517001. The reversal of 40188516956 is 65961588104.

40188516956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

40188516956 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 40188516898 and 40188516907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717652061 + ... + 717652116.

It is an arithmetic number, because the mean of its divisors is an integer number (6698086164).

Almost surely, 2^40188516956 is an apocalyptic number.

It is an amenable number.

40188516956 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40188516956 is a wasteful number, since it uses less digits than its factorization.

40188516956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435304188 (or 1435304186 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 53.

The spelling of 40188516956 in words is "forty billion, one hundred eighty-eight million, five hundred sixteen thousand, nine hundred fifty-six".