40111745155 has 4 divisors (see below), whose sum is σ = 48134094192. Its totient is φ = 32089396120.

The previous prime is 40111745131. The next prime is 40111745159. The reversal of 40111745155 is 55154711104.

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

It is not a de Polignac number, because 40111745155 - 2²⁵ = 40078190723 is a prime.

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 40111745155.

It is not an unprimeable number, because it can be changed into a prime (40111745159) 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, 4011174511 + ... + 4011174520.

It is an arithmetic number, because the mean of its divisors is an integer number (12033523548).

Almost surely, 2^40111745155 is an apocalyptic number.

40111745155 is a deficient number, since it is larger than the sum of its proper divisors (8022349037).

40111745155 is an equidigital number, since it uses as much as digits as its factorization.

40111745155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8022349036.

The product of its (nonzero) digits is 14000, while the sum is 34.

The spelling of 40111745155 in words is "forty billion, one hundred eleven million, seven hundred forty-five thousand, one hundred fifty-five".