6691942000 has 80 divisors (see below), whose sum is σ = 16884758592. Its totient is φ = 2560377600.

The previous prime is 6691941983. The next prime is 6691942001. The reversal of 6691942000 is 2491966.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6691942001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26739 + ... + 118738.

Almost surely, 2^6691942000 is an apocalyptic number.

It is an amenable number.

6691942000 is an abundant number, since it is smaller than the sum of its proper divisors (10192816592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6691942000 is a wasteful number, since it uses less digits than its factorization.

6691942000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145523 (or 145507 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 6691942000 is about 81804.2908410066. The cubic root of 6691942000 is about 1884.4475581392.

The spelling of 6691942000 in words is "six billion, six hundred ninety-one million, nine hundred forty-two thousand".