6999156941 has 16 divisors (see below), whose sum is σ = 8083996800. Its totient is φ = 5935716288.

The previous prime is 6999156893. The next prime is 6999156947. The reversal of 6999156941 is 1496519996.

It is a cyclic number.

It is not a de Polignac number, because 6999156941 - 2²⁶ = 6932048077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6999156947) 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, 557651 + ... + 570063.

It is an arithmetic number, because the mean of its divisors is an integer number (505249800).

Almost surely, 2^6999156941 is an apocalyptic number.

It is an amenable number.

6999156941 is a deficient number, since it is larger than the sum of its proper divisors (1084839859).

6999156941 is a wasteful number, since it uses less digits than its factorization.

6999156941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13268.

The product of its digits is 4723920, while the sum is 59.

The square root of 6999156941 is about 83660.9642605200. The cubic root of 6999156941 is about 1912.8543837915.

The spelling of 6999156941 in words is "six billion, nine hundred ninety-nine million, one hundred fifty-six thousand, nine hundred forty-one".