166719342685 has 48 divisors (see below), whose sum is σ = 235169640576. Its totient is φ = 113123509632.

The previous prime is 166719342683. The next prime is 166719342701. The reversal of 166719342685 is 586243917661.

It is not a de Polignac number, because 166719342685 - 2¹ = 166719342683 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 (166719342683) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59477494 + ... + 59480296.

It is an arithmetic number, because the mean of its divisors is an integer number (4899367512).

Almost surely, 2^166719342685 is an apocalyptic number.

It is an amenable number.

166719342685 is a deficient number, since it is larger than the sum of its proper divisors (68450297891).

166719342685 is a wasteful number, since it uses less digits than its factorization.

166719342685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5282 (or 5275 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 58.

The spelling of 166719342685 in words is "one hundred sixty-six billion, seven hundred nineteen million, three hundred forty-two thousand, six hundred eighty-five".