1625681696 has 24 divisors (see below), whose sum is σ = 3202724700. Its totient is φ = 812291328.

The previous prime is 1625681689. The next prime is 1625681713. The reversal of 1625681696 is 6961865261.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1503888400 + 121793296 = 38780^2 + 11036^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33170 + ... + 65966.

Almost surely, 2^1625681696 is an apocalyptic number.

1625681696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1625681696 is a deficient number, since it is larger than the sum of its proper divisors (1577043004).

1625681696 is a wasteful number, since it uses less digits than its factorization.

1625681696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34356 (or 34348 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 1625681696 is about 40319.7432531508. The cubic root of 1625681696 is about 1175.8317204104.

The spelling of 1625681696 in words is "one billion, six hundred twenty-five million, six hundred eighty-one thousand, six hundred ninety-six".