651325455646 has 16 divisors (see below), whose sum is σ = 1014132144960. Its totient is φ = 313508587680.

The previous prime is 651325455629. The next prime is 651325455653. The reversal of 651325455646 is 646554523156.

It is a junction number, because it is equal to n+sod(n) for n = 651325455593 and 651325455602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56789301 + ... + 56800768.

It is an arithmetic number, because the mean of its divisors is an integer number (63383259060).

Almost surely, 2^651325455646 is an apocalyptic number.

651325455646 is a deficient number, since it is larger than the sum of its proper divisors (362806689314).

651325455646 is a wasteful number, since it uses less digits than its factorization.

651325455646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113590179.

The product of its digits is 12960000, while the sum is 52.

The spelling of 651325455646 in words is "six hundred fifty-one billion, three hundred twenty-five million, four hundred fifty-five thousand, six hundred forty-six".