1210716656 has 20 divisors (see below), whose sum is σ = 2421434304. Its totient is φ = 585830400.

The previous prime is 1210716623. The next prime is 1210716677. The reversal of 1210716656 is 6566170121.

1210716656 is an admirable number.

It is a super-2 number, since 2×1210716656² = 2931669642231644672, 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1219985 + ... + 1220976.

Almost surely, 2^1210716656 is an apocalyptic number.

1210716656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1210716656 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1210716656 is a wasteful number, since it uses less digits than its factorization.

1210716656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441000 (or 2440994 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1210716656 is about 34795.3539427321. The cubic root of 1210716656 is about 1065.8125727220.

Adding to 1210716656 its reverse (6566170121), we get a palindrome (7776886777).

The spelling of 1210716656 in words is "one billion, two hundred ten million, seven hundred sixteen thousand, six hundred fifty-six".