651532630065 has 64 divisors (see below), whose sum is σ = 1123163062272. Its totient is φ = 321569107200.

The previous prime is 651532630057. The next prime is 651532630069. The reversal of 651532630065 is 560036235156.

It is not a de Polignac number, because 651532630065 - 2³ = 651532630057 is a prime.

It is a super-2 number, since 2×651532630065² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 651532629999 and 651532630026.

It is not an unprimeable number, because it can be changed into a prime (651532630069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64560670 + ... + 64570760.

It is an arithmetic number, because the mean of its divisors is an integer number (17549422848).

Almost surely, 2^651532630065 is an apocalyptic number.

It is an amenable number.

651532630065 is a deficient number, since it is larger than the sum of its proper divisors (471630432207).

651532630065 is a wasteful number, since it uses less digits than its factorization.

651532630065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16190.

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 651532630065 in words is "six hundred fifty-one billion, five hundred thirty-two million, six hundred thirty thousand, sixty-five".