166696473 has 8 divisors (see below), whose sum is σ = 222325600. Its totient is φ = 111099168.

The previous prime is 166696463. The next prime is 166696483. The reversal of 166696473 is 374696661.

It is an interprime number because it is at equal distance from previous prime (166696463) and next prime (166696483).

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

It is not a de Polignac number, because 166696473 - 2⁹ = 166695961 is a prime.

It is a super-2 number, since 2×166696473² = 55575428221279458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166696403) 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, 10173 + ... + 20901.

It is an arithmetic number, because the mean of its divisors is an integer number (27790700).

Almost surely, 2^166696473 is an apocalyptic number.

It is an amenable number.

166696473 is a deficient number, since it is larger than the sum of its proper divisors (55629127).

166696473 is a wasteful number, since it uses less digits than its factorization.

166696473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15911.

The product of its digits is 979776, while the sum is 48.

The square root of 166696473 is about 12911.0988300764. The cubic root of 166696473 is about 550.3540123084.

The spelling of 166696473 in words is "one hundred sixty-six million, six hundred ninety-six thousand, four hundred seventy-three".