662198856 has 64 divisors (see below), whose sum is σ = 1828915200. Its totient is φ = 198120000.

The previous prime is 662198851. The next prime is 662198857. The reversal of 662198856 is 658891266.

It is a junction number, because it is equal to n+sod(n) for n = 662198799 and 662198808.

It is not an unprimeable number, because it can be changed into a prime (662198851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4981 + ... + 36731.

It is an arithmetic number, because the mean of its divisors is an integer number (28576800).

Almost surely, 2^662198856 is an apocalyptic number.

662198856 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 662198856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914457600).

662198856 is an abundant number, since it is smaller than the sum of its proper divisors (1166716344).

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

662198856 is a wasteful number, since it uses less digits than its factorization.

662198856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31850 (or 31846 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 662198856 is about 25733.2247493391. The cubic root of 662198856 is about 871.6245929157.

The spelling of 662198856 in words is "six hundred sixty-two million, one hundred ninety-eight thousand, eight hundred fifty-six".