166702051 has 8 divisors (see below), whose sum is σ = 176623200. Its totient is φ = 156793728.

The previous prime is 166702049. The next prime is 166702069. The reversal of 166702051 is 150207661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166702051 - 2¹ = 166702049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166702021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41410 + ... + 45256.

It is an arithmetic number, because the mean of its divisors is an integer number (22077900).

Almost surely, 2^166702051 is an apocalyptic number.

166702051 is a deficient number, since it is larger than the sum of its proper divisors (9921149).

166702051 is a wasteful number, since it uses less digits than its factorization.

166702051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6413.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 166702051 is about 12911.3148439654. The cubic root of 166702051 is about 550.3601508914.

It can be divided in two parts, 16670 and 2051, that added together give a triangular number (18721 = T₁₉₃).

The spelling of 166702051 in words is "one hundred sixty-six million, seven hundred two thousand, fifty-one".