6667940698 has 16 divisors (see below), whose sum is σ = 10118385000. Its totient is φ = 3295176192.

The previous prime is 6667940689. The next prime is 6667940707. The reversal of 6667940698 is 8960497666.

6667940698 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6667940689) and next prime (6667940707).

It can be written as a sum of positive squares in 4 ways, for example, as 4308215769 + 2359724929 = 65637^2 + 48577^2 .

It is a super-2 number, since 2×6667940698² = 88922866304089454408, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547378 + ... + 559426.

Almost surely, 2^6667940698 is an apocalyptic number.

6667940698 is a deficient number, since it is larger than the sum of its proper divisors (3450444302).

6667940698 is a wasteful number, since it uses less digits than its factorization.

6667940698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15249.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The square root of 6667940698 is about 81657.4595367747. The cubic root of 6667940698 is about 1882.1919410643.

The spelling of 6667940698 in words is "six billion, six hundred sixty-seven million, nine hundred forty thousand, six hundred ninety-eight".