166066262 has 4 divisors (see below), whose sum is σ = 249099396. Its totient is φ = 83033130.

The previous prime is 166066259. The next prime is 166066273. The reversal of 166066262 is 262660661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 262660661 = 10267 ⋅25583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41516564 + ... + 41516567.

It is an arithmetic number, because the mean of its divisors is an integer number (62274849).

Almost surely, 2^166066262 is an apocalyptic number.

166066262 is a deficient number, since it is larger than the sum of its proper divisors (83033134).

166066262 is an equidigital number, since it uses as much as digits as its factorization.

166066262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83033133.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 166066262 is about 12886.6699344710. The cubic root of 166066262 is about 549.6595821822.

The spelling of 166066262 in words is "one hundred sixty-six million, sixty-six thousand, two hundred sixty-two".