699518866680 has 192 divisors, whose sum is σ = 2286676267200. Its totient is φ = 185455226880.

The previous prime is 699518866667. The next prime is 699518866691. The reversal of 699518866680 is 86668815996.

It is a super-2 number, since 2×699518866680² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 699518866599 and 699518866608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43545850 + ... + 43561910.

It is an arithmetic number, because the mean of its divisors is an integer number (11909772225).

Almost surely, 2^699518866680 is an apocalyptic number.

699518866680 is a gapful number since it is divisible by the number (60) 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 699518866680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1143338133600).

699518866680 is an abundant number, since it is smaller than the sum of its proper divisors (1587157400520).

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

699518866680 is a wasteful number, since it uses less digits than its factorization.

699518866680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16774 (or 16767 counting only the distinct ones).

The product of its (nonzero) digits is 268738560, while the sum is 72.

The spelling of 699518866680 in words is "six hundred ninety-nine billion, five hundred eighteen million, eight hundred sixty-six thousand, six hundred eighty".