6763220666665 has 16 divisors (see below), whose sum is σ = 8154533794176. Its totient is φ = 5384798496000.

The previous prime is 6763220666659. The next prime is 6763220666681. The reversal of 6763220666665 is 5666660223676.

It is not a de Polignac number, because 6763220666665 - 2¹¹ = 6763220664617 is a prime.

It is a Duffinian number.

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, 74808129 + ... + 74898481.

It is an arithmetic number, because the mean of its divisors is an integer number (509658362136).

Almost surely, 2^{6763220666665} is an apocalyptic number.

It is an amenable number.

6763220666665 is a deficient number, since it is larger than the sum of its proper divisors (1391313127511).

6763220666665 is a wasteful number, since it uses less digits than its factorization.

6763220666665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161520.

The product of its (nonzero) digits is 117573120, while the sum is 61.

The spelling of 6763220666665 in words is "six trillion, seven hundred sixty-three billion, two hundred twenty million, six hundred sixty-six thousand, six hundred sixty-five".