40156632113 has 4 divisors (see below), whose sum is σ = 43245603828. Its totient is φ = 37067660400.

The previous prime is 40156632071. The next prime is 40156632149. The reversal of 40156632113 is 31123665104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5236982689 + 34919649424 = 72367^2 + 186868^2 .

It is a cyclic number.

It is not a de Polignac number, because 40156632113 - 2⁶ = 40156632049 is a prime.

It is a super-2 number, since 2×40156632113² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40156632113.

It is not an unprimeable number, because it can be changed into a prime (40156632013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544485838 + ... + 1544485863.

It is an arithmetic number, because the mean of its divisors is an integer number (10811400957).

Almost surely, 2^40156632113 is an apocalyptic number.

It is an amenable number.

40156632113 is a deficient number, since it is larger than the sum of its proper divisors (3088971715).

40156632113 is a wasteful number, since it uses less digits than its factorization.

40156632113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088971714.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 40156632113 in words is "forty billion, one hundred fifty-six million, six hundred thirty-two thousand, one hundred thirteen".