66167284382 has 4 divisors (see below), whose sum is σ = 99250926576. Its totient is φ = 33083642190.

The previous prime is 66167284363. The next prime is 66167284397. The reversal of 66167284382 is 28348276166.

It is a happy number.

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

It is a super-2 number, since 2×66167284382² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16541821094 + ... + 16541821097.

It is an arithmetic number, because the mean of its divisors is an integer number (24812731644).

Almost surely, 2^66167284382 is an apocalyptic number.

66167284382 is a deficient number, since it is larger than the sum of its proper divisors (33083642194).

66167284382 is a wasteful number, since it uses less digits than its factorization.

66167284382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33083642193.

The product of its digits is 4644864, while the sum is 53.

The spelling of 66167284382 in words is "sixty-six billion, one hundred sixty-seven million, two hundred eighty-four thousand, three hundred eighty-two".