6650066611497 has 4 divisors (see below), whose sum is σ = 8866755482000. Its totient is φ = 4433377740996.

The previous prime is 6650066611493. The next prime is 6650066611499. The reversal of 6650066611497 is 7941166600566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6650066611497 - 2² = 6650066611493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6650066611493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108344435247 + ... + 1108344435252.

It is an arithmetic number, because the mean of its divisors is an integer number (2216688870500).

Almost surely, 2^{6650066611497} is an apocalyptic number.

It is an amenable number.

6650066611497 is a deficient number, since it is larger than the sum of its proper divisors (2216688870503).

6650066611497 is a wasteful number, since it uses less digits than its factorization.

6650066611497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216688870502.

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 6650066611497 in words is "six trillion, six hundred fifty billion, sixty-six million, six hundred eleven thousand, four hundred ninety-seven".