166676255293 has 4 divisors (see below), whose sum is σ = 167988666880. Its totient is φ = 165363843708.

The previous prime is 166676255287. The next prime is 166676255299. The reversal of 166676255293 is 392552676661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 392552676661 = 17737 ⋅22131853.

It is an interprime number because it is at equal distance from previous prime (166676255287) and next prime (166676255299).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166676255293 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 (166676255299) 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, 656205603 + ... + 656205856.

It is an arithmetic number, because the mean of its divisors is an integer number (41997166720).

Almost surely, 2^166676255293 is an apocalyptic number.

It is an amenable number.

166676255293 is a deficient number, since it is larger than the sum of its proper divisors (1312411587).

166676255293 is a wasteful number, since it uses less digits than its factorization.

166676255293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312411586.

The product of its digits is 24494400, while the sum is 58.

The spelling of 166676255293 in words is "one hundred sixty-six billion, six hundred seventy-six million, two hundred fifty-five thousand, two hundred ninety-three".