166106515 has 8 divisors (see below), whose sum is σ = 199489968. Its totient is φ = 132777120.

The previous prime is 166106509. The next prime is 166106527. The reversal of 166106515 is 515601661.

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

It is not a de Polignac number, because 166106515 - 2⁷ = 166106387 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6412 + ... + 19321.

It is an arithmetic number, because the mean of its divisors is an integer number (24936246).

Almost surely, 2^166106515 is an apocalyptic number.

166106515 is a deficient number, since it is larger than the sum of its proper divisors (33383453).

166106515 is a wasteful number, since it uses less digits than its factorization.

166106515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27029.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 166106515 is about 12888.2316475147. The cubic root of 166106515 is about 549.7039894758.

The spelling of 166106515 in words is "one hundred sixty-six million, one hundred six thousand, five hundred fifteen".