656250625042 has 8 divisors (see below), whose sum is σ = 1018319935500. Its totient is φ = 316810646544.

The previous prime is 656250625003. The next prime is 656250625057. The reversal of 656250625042 is 240526052656.

It can be written as a sum of positive squares in 2 ways, for example, as 656195583481 + 55041561 = 810059^2 + 7419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 656250625042.

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 3 ways as a sum of consecutive naturals, for example, 5657332917 + ... + 5657333032.

Almost surely, 2^656250625042 is an apocalyptic number.

656250625042 is a deficient number, since it is larger than the sum of its proper divisors (362069310458).

656250625042 is a wasteful number, since it uses less digits than its factorization.

656250625042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11314665980.

The product of its (nonzero) digits is 864000, while the sum is 43.

Adding to 656250625042 its reverse (240526052656), we get a palindrome (896776677698).

The spelling of 656250625042 in words is "six hundred fifty-six billion, two hundred fifty million, six hundred twenty-five thousand, forty-two".