245616656 has 20 divisors (see below), whose sum is σ = 488745132. Its totient is φ = 119488896.

The previous prime is 245616653. The next prime is 245616661. The reversal of 245616656 is 656616542.

It can be written as a sum of positive squares in 2 ways, for example, as 233478400 + 12138256 = 15280^2 + 3484^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (245616653) by changing a digit.

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, 206855 + ... + 208038.

Almost surely, 2^245616656 is an apocalyptic number.

It is an amenable number.

245616656 is a deficient number, since it is larger than the sum of its proper divisors (243128476).

245616656 is a wasteful number, since it uses less digits than its factorization.

245616656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414938 (or 414932 counting only the distinct ones).

The product of its digits is 259200, while the sum is 41.

The square root of 245616656 is about 15672.1618164183. The cubic root of 245616656 is about 626.2570166132.

The spelling of 245616656 in words is "two hundred forty-five million, six hundred sixteen thousand, six hundred fifty-six".