166615097 has 8 divisors (see below), whose sum is σ = 182083872. Its totient is φ = 151200000.

The previous prime is 166615073. The next prime is 166615117. The reversal of 166615097 is 790516661.

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 166615097 - 2¹² = 166611001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166615027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6779 + ... + 19472.

It is an arithmetic number, because the mean of its divisors is an integer number (22760484).

Almost surely, 2^166615097 is an apocalyptic number.

It is an amenable number.

166615097 is a deficient number, since it is larger than the sum of its proper divisors (15468775).

166615097 is a wasteful number, since it uses less digits than its factorization.

166615097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26839.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 166615097 is about 12907.9470482335. The cubic root of 166615097 is about 550.2644425314.

The spelling of 166615097 in words is "one hundred sixty-six million, six hundred fifteen thousand, ninety-seven".