699655320 has 576 divisors, whose sum is σ = 2980242720. Its totient is φ = 146313216.

The previous prime is 699655309. The next prime is 699655321. The reversal of 699655320 is 23556996.

699655320 is a `hidden beast` number, since 6 + 9 + 96 + 553 + 2 + 0 = 666.

699655320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699655321) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6191584 + ... + 6191696.

Almost surely, 2^699655320 is an apocalyptic number.

699655320 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 699655320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1490121360).

699655320 is an abundant number, since it is smaller than the sum of its proper divisors (2280587400).

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

699655320 is a wasteful number, since it uses less digits than its factorization.

699655320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The square root of 699655320 is about 26450.9984688669. The cubic root of 699655320 is about 887.7582431727.

The spelling of 699655320 in words is "six hundred ninety-nine million, six hundred fifty-five thousand, three hundred twenty".