40451155911 has 6 divisors (see below), whose sum is σ = 58429447440. Its totient is φ = 26967437268.

The previous prime is 40451155909. The next prime is 40451155957. The reversal of 40451155911 is 11955115404.

It is a happy number.

40451155911 is a `hidden beast` number, since 4 + 0 + 4 + 51 + 15 + 591 + 1 = 666.

It is not a de Polignac number, because 40451155911 - 2¹ = 40451155909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40451155981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2247286431 + ... + 2247286448.

It is an arithmetic number, because the mean of its divisors is an integer number (9738241240).

Almost surely, 2^40451155911 is an apocalyptic number.

40451155911 is a deficient number, since it is larger than the sum of its proper divisors (17978291529).

40451155911 is a wasteful number, since it uses less digits than its factorization.

40451155911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494572885 (or 4494572882 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 36.

The spelling of 40451155911 in words is "forty billion, four hundred fifty-one million, one hundred fifty-five thousand, nine hundred eleven".