664737010451 has 2 divisors, whose sum is σ = 664737010452. Its totient is φ = 664737010450.

The previous prime is 664737010403. The next prime is 664737010571. The reversal of 664737010451 is 154010737466.

664737010451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 664737010451 - 2⁶ = 664737010387 is a prime.

It is not a weakly prime, because it can be changed into another prime (664737070451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332368505225 + 332368505226.

It is an arithmetic number, because the mean of its divisors is an integer number (332368505226).

Almost surely, 2^664737010451 is an apocalyptic number.

664737010451 is a deficient number, since it is larger than the sum of its proper divisors (1).

664737010451 is an equidigital number, since it uses as much as digits as its factorization.

664737010451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 664737010451 in words is "six hundred sixty-four billion, seven hundred thirty-seven million, ten thousand, four hundred fifty-one".