66145836182 has 4 divisors (see below), whose sum is σ = 99218754276. Its totient is φ = 33072918090.

The previous prime is 66145836179. The next prime is 66145836191. The reversal of 66145836182 is 28163854166.

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

It is a self number, because there is not a number n which added to its sum of digits gives 66145836182.

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, 16536459044 + ... + 16536459047.

It is an arithmetic number, because the mean of its divisors is an integer number (24804688569).

Almost surely, 2^66145836182 is an apocalyptic number.

66145836182 is a deficient number, since it is larger than the sum of its proper divisors (33072918094).

66145836182 is a wasteful number, since it uses less digits than its factorization.

66145836182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33072918093.

The product of its digits is 1658880, while the sum is 50.

The spelling of 66145836182 in words is "sixty-six billion, one hundred forty-five million, eight hundred thirty-six thousand, one hundred eighty-two".