40045551163 has 4 divisors (see below), whose sum is σ = 41337343168. Its totient is φ = 38753759160.

The previous prime is 40045551151. The next prime is 40045551167. The reversal of 40045551163 is 36115554004.

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

It is a cyclic number.

It is not a de Polignac number, because 40045551163 - 2²⁹ = 39508680251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40045551167) 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, 645895956 + ... + 645896017.

It is an arithmetic number, because the mean of its divisors is an integer number (10334335792).

Almost surely, 2^40045551163 is an apocalyptic number.

40045551163 is a deficient number, since it is larger than the sum of its proper divisors (1291792005).

40045551163 is a wasteful number, since it uses less digits than its factorization.

40045551163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291792004.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 40045551163 in words is "forty billion, forty-five million, five hundred fifty-one thousand, one hundred sixty-three".