7955949966 has 8 divisors (see below), whose sum is σ = 15911899944. Its totient is φ = 2651983320.

The previous prime is 7955949959. The next prime is 7955950031. The reversal of 7955949966 is 6699495597.

It is a sphenic number, since it is the product of 3 distinct primes.

7955949966 is an admirable number.

It is a super-2 number, since 2×7955949966² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7955949966.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 662995825 + ... + 662995836.

It is an arithmetic number, because the mean of its divisors is an integer number (1988987493).

Almost surely, 2^7955949966 is an apocalyptic number.

7955949966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7955949966 is a wasteful number, since it uses less digits than its factorization.

7955949966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325991666.

The product of its digits is 165337200, while the sum is 69.

The square root of 7955949966 is about 89196.1320125486. The cubic root of 7955949966 is about 1996.3224056280.

The spelling of 7955949966 in words is "seven billion, nine hundred fifty-five million, nine hundred forty-nine thousand, nine hundred sixty-six".