64496651 has 2 divisors, whose sum is σ = 64496652. Its totient is φ = 64496650.

The previous prime is 64496639. The next prime is 64496683. The reversal of 64496651 is 15669446.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64496651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64496599 and 64496608.

It is not a weakly prime, because it can be changed into another prime (64496611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32248325 + 32248326.

It is an arithmetic number, because the mean of its divisors is an integer number (32248326).

Almost surely, 2^64496651 is an apocalyptic number.

64496651 is a deficient number, since it is larger than the sum of its proper divisors (1).

64496651 is an equidigital number, since it uses as much as digits as its factorization.

64496651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 64496651 is about 8030.9806997651. The cubic root of 64496651 is about 401.0320246064.

The spelling of 64496651 in words is "sixty-four million, four hundred ninety-six thousand, six hundred fifty-one".