40731560156 has 48 divisors (see below), whose sum is σ = 85778434560. Its totient is φ = 16532268480.

The previous prime is 40731560147. The next prime is 40731560161. The reversal of 40731560156 is 65106513704.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1911521 + ... + 1932711.

It is an arithmetic number, because the mean of its divisors is an integer number (1787050720).

Almost surely, 2^40731560156 is an apocalyptic number.

It is an amenable number.

40731560156 is an abundant number, since it is smaller than the sum of its proper divisors (45046874404).

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

40731560156 is a wasteful number, since it uses less digits than its factorization.

40731560156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24834 (or 24832 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 40731560156 in words is "forty billion, seven hundred thirty-one million, five hundred sixty thousand, one hundred fifty-six".