66298748351 has 32 divisors (see below), whose sum is σ = 75167896320. Its totient is φ = 57953952000.

The previous prime is 66298748339. The next prime is 66298748389. The reversal of 66298748351 is 15384789266.

It is a cyclic number.

It is not a de Polignac number, because 66298748351 - 2¹⁸ = 66298486207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66298745351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8547491 + ... + 8555243.

It is an arithmetic number, because the mean of its divisors is an integer number (2348996760).

Almost surely, 2^66298748351 is an apocalyptic number.

66298748351 is a deficient number, since it is larger than the sum of its proper divisors (8869147969).

66298748351 is a wasteful number, since it uses less digits than its factorization.

66298748351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8087.

The product of its digits is 17418240, while the sum is 59.

The spelling of 66298748351 in words is "sixty-six billion, two hundred ninety-eight million, seven hundred forty-eight thousand, three hundred fifty-one".