6990572159 has 12 divisors (see below), whose sum is σ = 7431998448. Its totient is φ = 6574022400.

The previous prime is 6990572143. The next prime is 6990572167. The reversal of 6990572159 is 9512750996.

It is a happy number.

It is not a de Polignac number, because 6990572159 - 2⁴ = 6990572143 is a prime.

It is a super-2 number, since 2×6990572159² = 97736198220371842562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6990572159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990572129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372614 + ... + 390924.

It is an arithmetic number, because the mean of its divisors is an integer number (619333204).

Almost surely, 2^6990572159 is an apocalyptic number.

6990572159 is a deficient number, since it is larger than the sum of its proper divisors (441426289).

6990572159 is a wasteful number, since it uses less digits than its factorization.

6990572159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19666 (or 19649 counting only the distinct ones).

The product of its (nonzero) digits is 1530900, while the sum is 53.

The square root of 6990572159 is about 83609.6415433053. The cubic root of 6990572159 is about 1912.0719964041.

The spelling of 6990572159 in words is "six billion, nine hundred ninety million, five hundred seventy-two thousand, one hundred fifty-nine".