66353337582 has 64 divisors (see below), whose sum is σ = 155349342720. Its totient is φ = 18498420864.

The previous prime is 66353337581. The next prime is 66353337593. The reversal of 66353337582 is 28573335366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66353337581) 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, 1811344 + ... + 1847612.

It is an arithmetic number, because the mean of its divisors is an integer number (2427333480).

Almost surely, 2^66353337582 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66353337582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77674671360).

66353337582 is an abundant number, since it is smaller than the sum of its proper divisors (88996005138).

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

66353337582 is a wasteful number, since it uses less digits than its factorization.

66353337582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37337.

The product of its digits is 8164800, while the sum is 51.

The spelling of 66353337582 in words is "sixty-six billion, three hundred fifty-three million, three hundred thirty-seven thousand, five hundred eighty-two".