6667920693 has 48 divisors (see below), whose sum is σ = 11692676736. Its totient is φ = 3574471680.

The previous prime is 6667920599. The next prime is 6667920697. The reversal of 6667920693 is 3960297666.

It is a happy number.

It is not a de Polignac number, because 6667920693 - 2¹⁷ = 6667789621 is a prime.

It is a super-2 number, since 2×6667920693² = 88922332736275200498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6667920697) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 325278 + ... + 345168.

It is an arithmetic number, because the mean of its divisors is an integer number (243597432).

Almost surely, 2^6667920693 is an apocalyptic number.

6667920693 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

6667920693 is a deficient number, since it is larger than the sum of its proper divisors (5024756043).

6667920693 is a wasteful number, since it uses less digits than its factorization.

6667920693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20234 (or 20231 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The square root of 6667920693 is about 81657.3370432811. The cubic root of 6667920693 is about 1882.1900587596.

The spelling of 6667920693 in words is "six billion, six hundred sixty-seven million, nine hundred twenty thousand, six hundred ninety-three".