66239286037 has 4 divisors (see below), whose sum is σ = 66239807200. Its totient is φ = 66238764876.

The previous prime is 66239285963. The next prime is 66239286041. The reversal of 66239286037 is 73068293266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 66239286037 - 2⁷ = 66239285909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66239286067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69118 + ... + 370480.

It is an arithmetic number, because the mean of its divisors is an integer number (16559951800).

Almost surely, 2^66239286037 is an apocalyptic number.

It is an amenable number.

66239286037 is a deficient number, since it is larger than the sum of its proper divisors (521163).

66239286037 is a wasteful number, since it uses less digits than its factorization.

66239286037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521162.

The product of its (nonzero) digits is 3919104, while the sum is 52.

The spelling of 66239286037 in words is "sixty-six billion, two hundred thirty-nine million, two hundred eighty-six thousand, thirty-seven".