1676605656 has 128 divisors (see below), whose sum is σ = 4654920960. Its totient is φ = 499008000.

The previous prime is 1676605607. The next prime is 1676605687. The reversal of 1676605656 is 6565066761.

It is a happy number.

It is a super-2 number, since 2×1676605656² = 5622013051462380672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6052590 + ... + 6052866.

It is an arithmetic number, because the mean of its divisors is an integer number (36366570).

Almost surely, 2^1676605656 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 1676605656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2327460480).

1676605656 is an abundant number, since it is smaller than the sum of its proper divisors (2978315304).

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

1676605656 is a wasteful number, since it uses less digits than its factorization.

1676605656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 48.

The square root of 1676605656 is about 40946.3753707212. The cubic root of 1676605656 is about 1187.9832270983.

The spelling of 1676605656 in words is "one billion, six hundred seventy-six million, six hundred five thousand, six hundred fifty-six".