65615000669 has 8 divisors (see below), whose sum is σ = 66595582080. Its totient is φ = 64635986800.

The previous prime is 65615000651. The next prime is 65615000677. The reversal of 65615000669 is 96600051656.

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 65615000669 - 2²⁸ = 65346565213 is a prime.

It is a super-2 number, since 2×65615000669² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65615003669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307409 + ... + 475110.

It is an arithmetic number, because the mean of its divisors is an integer number (8324447760).

Almost surely, 2^65615000669 is an apocalyptic number.

It is an amenable number.

65615000669 is a deficient number, since it is larger than the sum of its proper divisors (980581411).

65615000669 is a wasteful number, since it uses less digits than its factorization.

65615000669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783771.

The product of its (nonzero) digits is 291600, while the sum is 44.

The spelling of 65615000669 in words is "sixty-five billion, six hundred fifteen million, six hundred sixty-nine", and thus it is an aban number.