166103351 has 4 divisors (see below), whose sum is σ = 166355304. Its totient is φ = 165851400.

The previous prime is 166103347. The next prime is 166103359. The reversal of 166103351 is 153301661.

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

It is a cyclic number.

It is not a de Polignac number, because 166103351 - 2² = 166103347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166103351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166103359) 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, 124985 + ... + 126306.

It is an arithmetic number, because the mean of its divisors is an integer number (41588826).

Almost surely, 2^166103351 is an apocalyptic number.

166103351 is a deficient number, since it is larger than the sum of its proper divisors (251953).

166103351 is an equidigital number, since it uses as much as digits as its factorization.

166103351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251952.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 166103351 is about 12888.1088992916. The cubic root of 166103351 is about 549.7004991963.

The spelling of 166103351 in words is "one hundred sixty-six million, one hundred three thousand, three hundred fifty-one".