699237700056 has 288 divisors, whose sum is σ = 2252357649360. Its totient is φ = 195328433664.

The previous prime is 699237700001. The next prime is 699237700067. The reversal of 699237700056 is 650007732996.

It is a super-2 number, since 2×699237700056² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 699237699975 and 699237700011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 54779931 + ... + 54792693.

Almost surely, 2^699237700056 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 699237700056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126178824680).

699237700056 is an abundant number, since it is smaller than the sum of its proper divisors (1553119949304).

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

699237700056 is a wasteful number, since it uses less digits than its factorization.

699237700056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13135 (or 13121 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 699237700056 in words is "six hundred ninety-nine billion, two hundred thirty-seven million, seven hundred thousand, fifty-six".