166669742383 has 4 divisors (see below), whose sum is σ = 166670604808. Its totient is φ = 166668879960.

The previous prime is 166669742353. The next prime is 166669742423. The reversal of 166669742383 is 383247966661.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166669742383 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 (166669742353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7360 + ... + 577402.

It is an arithmetic number, because the mean of its divisors is an integer number (41667651202).

Almost surely, 2^166669742383 is an apocalyptic number.

166669742383 is a deficient number, since it is larger than the sum of its proper divisors (862425).

166669742383 is an equidigital number, since it uses as much as digits as its factorization.

166669742383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862424.

The product of its digits is 47029248, while the sum is 61.

The spelling of 166669742383 in words is "one hundred sixty-six billion, six hundred sixty-nine million, seven hundred forty-two thousand, three hundred eighty-three".