40516496865 has 336 divisors, whose sum is σ = 86321799792. Its totient is φ = 18166726656.

The previous prime is 40516496827. The next prime is 40516496873. The reversal of 40516496865 is 56869461504.

40516496865 is a `hidden beast` number, since 4 + 0 + 516 + 4 + 9 + 68 + 65 = 666.

It can be written as a sum of positive squares in 24 ways, for example, as 26842234896 + 13674261969 = 163836^2 + 116937^2 .

It is not a de Polignac number, because 40516496865 - 2⁹ = 40516496353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 555020469 + ... + 555020541.

Almost surely, 2^40516496865 is an apocalyptic number.

40516496865 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40516496865 is an abundant number, since it is smaller than the sum of its proper divisors (45805302927).

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

40516496865 is a wasteful number, since it uses less digits than its factorization.

40516496865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 40516496865 in words is "forty billion, five hundred sixteen million, four hundred ninety-six thousand, eight hundred sixty-five".