66403762115 has 8 divisors (see below), whose sum is σ = 79697083680. Its totient is φ = 53114630272.

The previous prime is 66403762097. The next prime is 66403762147. The reversal of 66403762115 is 51126730466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66403762115 - 2¹⁴ = 66403745731 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012454 + ... + 1076043.

It is an arithmetic number, because the mean of its divisors is an integer number (9962135460).

Almost surely, 2^66403762115 is an apocalyptic number.

66403762115 is a deficient number, since it is larger than the sum of its proper divisors (13293321565).

66403762115 is a wasteful number, since it uses less digits than its factorization.

66403762115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094861.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 66403762115 in words is "sixty-six billion, four hundred three million, seven hundred sixty-two thousand, one hundred fifteen".