66239286036 has 384 divisors, whose sum is σ = 201877401600. Its totient is φ = 16893381120.

The previous prime is 66239285963. The next prime is 66239286041. The reversal of 66239286036 is 63068293266.

66239286036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 66239286036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 586188316 + ... + 586188428.

It is an arithmetic number, because the mean of its divisors is an integer number (525722400).

Almost surely, 2^66239286036 is an apocalyptic number.

66239286036 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66239286036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100938700800).

66239286036 is an abundant number, since it is smaller than the sum of its proper divisors (135638115564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66239286036 is a wasteful number, since it uses less digits than its factorization.

66239286036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 51.

The spelling of 66239286036 in words is "sixty-six billion, two hundred thirty-nine million, two hundred eighty-six thousand, thirty-six".