651916396 has 6 divisors (see below), whose sum is σ = 1140853700. Its totient is φ = 325958196.

The previous prime is 651916379. The next prime is 651916399. The reversal of 651916396 is 693619156.

It is not an unprimeable number, because it can be changed into a prime (651916399) by changing a digit.

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 as a sum of consecutive naturals, namely, 81489546 + ... + 81489553.

Almost surely, 2^651916396 is an apocalyptic number.

It is an amenable number.

651916396 is a deficient number, since it is larger than the sum of its proper divisors (488937304).

651916396 is a wasteful number, since it uses less digits than its factorization.

651916396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162979103 (or 162979101 counting only the distinct ones).

The product of its digits is 262440, while the sum is 46.

The square root of 651916396 is about 25532.6535244577. The cubic root of 651916396 is about 867.0895814300.

The spelling of 651916396 in words is "six hundred fifty-one million, nine hundred sixteen thousand, three hundred ninety-six".