651652645 has 16 divisors (see below), whose sum is σ = 894140928. Its totient is φ = 446624640.

The previous prime is 651652627. The next prime is 651652657. The reversal of 651652645 is 546256156.

651652645 = 8068² + 8069² + ... + 8077².

It is not a de Polignac number, because 651652645 - 2⁵ = 651652613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 651652598 and 651652607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99265 + ... + 105625.

It is an arithmetic number, because the mean of its divisors is an integer number (55883808).

Almost surely, 2^651652645 is an apocalyptic number.

It is an amenable number.

651652645 is a deficient number, since it is larger than the sum of its proper divisors (242488283).

651652645 is a wasteful number, since it uses less digits than its factorization.

651652645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9300.

The product of its digits is 216000, while the sum is 40.

The square root of 651652645 is about 25527.4880276145. The cubic root of 651652645 is about 866.9726305478.

The spelling of 651652645 in words is "six hundred fifty-one million, six hundred fifty-two thousand, six hundred forty-five".