651605516050 has 48 divisors (see below), whose sum is σ = 1238646971520. Its totient is φ = 254916551360.

The previous prime is 651605515997. The next prime is 651605516057. The reversal of 651605516050 is 50615506156.

It is a junction number, because it is equal to n+sod(n) for n = 651605515994 and 651605516012.

It is not an unprimeable number, because it can be changed into a prime (651605516057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3256296 + ... + 3450604.

It is an arithmetic number, because the mean of its divisors is an integer number (25805145240).

Almost surely, 2^651605516050 is an apocalyptic number.

651605516050 is a deficient number, since it is larger than the sum of its proper divisors (587041455470).

651605516050 is a wasteful number, since it uses less digits than its factorization.

651605516050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195795 (or 195790 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 651605516050 in words is "six hundred fifty-one billion, six hundred five million, five hundred sixteen thousand, fifty".