166793351 has 4 divisors (see below), whose sum is σ = 169282872. Its totient is φ = 164303832.

The previous prime is 166793339. The next prime is 166793353. The reversal of 166793351 is 153397661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153397661 = 107 ⋅1433623.

It is not a de Polignac number, because 166793351 - 2⁶ = 166793287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166793299 and 166793308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166793353) 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, 1244660 + ... + 1244793.

It is an arithmetic number, because the mean of its divisors is an integer number (42320718).

Almost surely, 2^166793351 is an apocalyptic number.

166793351 is a deficient number, since it is larger than the sum of its proper divisors (2489521).

166793351 is an equidigital number, since it uses as much as digits as its factorization.

166793351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489520.

The product of its digits is 102060, while the sum is 41.

The square root of 166793351 is about 12914.8500184865. The cubic root of 166793351 is about 550.4606069865.

The spelling of 166793351 in words is "one hundred sixty-six million, seven hundred ninety-three thousand, three hundred fifty-one".