40866816515 has 16 divisors (see below), whose sum is σ = 56835302400. Its totient is φ = 27628268640.

The previous prime is 40866816503. The next prime is 40866816521. The reversal of 40866816515 is 51561866804.

It is not a de Polignac number, because 40866816515 - 2¹² = 40866812419 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8220215 + ... + 8225184.

It is an arithmetic number, because the mean of its divisors is an integer number (3552206400).

Almost surely, 2^40866816515 is an apocalyptic number.

40866816515 is a deficient number, since it is larger than the sum of its proper divisors (15968485885).

40866816515 is a wasteful number, since it uses less digits than its factorization.

40866816515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16445482.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 40866816515 in words is "forty billion, eight hundred sixty-six million, eight hundred sixteen thousand, five hundred fifteen".