66151449283 has 4 divisors (see below), whose sum is σ = 66238377048. Its totient is φ = 66064521520.

The previous prime is 66151449281. The next prime is 66151449317. The reversal of 66151449283 is 38294415166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66151449283 - 2¹ = 66151449281 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66151449281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43462741 + ... + 43464262.

It is an arithmetic number, because the mean of its divisors is an integer number (16559594262).

Almost surely, 2^66151449283 is an apocalyptic number.

66151449283 is a deficient number, since it is larger than the sum of its proper divisors (86927765).

66151449283 is an equidigital number, since it uses as much as digits as its factorization.

66151449283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86927764.

The product of its digits is 1244160, while the sum is 49.

The spelling of 66151449283 in words is "sixty-six billion, one hundred fifty-one million, four hundred forty-nine thousand, two hundred eighty-three".