699759957996 has 144 divisors (see below), whose sum is σ = 2007215028000. Its totient is φ = 203604710400.

The previous prime is 699759957929. The next prime is 699759958019.

699759957996 is a `hidden beast` number, since 6 + 9 + 9 + 7 + 599 + 5 + 7 + 9 + 9 + 6 = 666.

699759957996 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1910280 + ... + 2246928.

It is an arithmetic number, because the mean of its divisors is an integer number (13938993250).

Almost surely, 2^699759957996 is an apocalyptic number.

699759957996 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699759957996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1003607514000).

699759957996 is an abundant number, since it is smaller than the sum of its proper divisors (1307455070004).

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

699759957996 is a wasteful number, since it uses less digits than its factorization.

699759957996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336880 (or 336875 counting only the distinct ones).

The product of its digits is 23436548100, while the sum is 90.

The spelling of 699759957996 in words is "six hundred ninety-nine billion, seven hundred fifty-nine million, nine hundred fifty-seven thousand, nine hundred ninety-six".