699045919656 has 128 divisors (see below), whose sum is σ = 2066300928000. Its totient is φ = 192853463040.

The previous prime is 699045919651. The next prime is 699045919661. The reversal of 699045919656 is 656919540996.

It is an interprime number because it is at equal distance from previous prime (699045919651) and next prime (699045919661).

It is not an unprimeable number, because it can be changed into a prime (699045919651) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2188921 + ... + 2487863.

It is an arithmetic number, because the mean of its divisors is an integer number (16142976000).

Almost surely, 2^699045919656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699045919656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1033150464000).

699045919656 is an abundant number, since it is smaller than the sum of its proper divisors (1367255008344).

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

699045919656 is a wasteful number, since it uses less digits than its factorization.

699045919656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299439 (or 299435 counting only the distinct ones).

The product of its (nonzero) digits is 141717600, while the sum is 69.

The spelling of 699045919656 in words is "six hundred ninety-nine billion, forty-five million, nine hundred nineteen thousand, six hundred fifty-six".