6614664611651 has 4 divisors (see below), whose sum is σ = 6775997894904. Its totient is φ = 6453331328400.

The previous prime is 6614664611617. The next prime is 6614664611657. The reversal of 6614664611651 is 1561164664166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6614664611651 - 2³⁰ = 6613590869827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6614664611593 and 6614664611602.

It is not an unprimeable number, because it can be changed into a prime (6614664611657) 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, 80666641565 + ... + 80666641646.

It is an arithmetic number, because the mean of its divisors is an integer number (1693999473726).

Almost surely, 2^{6614664611651} is an apocalyptic number.

6614664611651 is a deficient number, since it is larger than the sum of its proper divisors (161333283253).

6614664611651 is a wasteful number, since it uses less digits than its factorization.

6614664611651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161333283252.

The product of its digits is 3732480, while the sum is 53.

The spelling of 6614664611651 in words is "six trillion, six hundred fourteen billion, six hundred sixty-four million, six hundred eleven thousand, six hundred fifty-one".