166354126 has 4 divisors (see below), whose sum is σ = 249531192. Its totient is φ = 83177062.

The previous prime is 166354117. The next prime is 166354141. The reversal of 166354126 is 621453661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 621453661 = 251 ⋅2475911.

It is a junction number, because it is equal to n+sod(n) for n = 166354091 and 166354100.

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, 41588530 + ... + 41588533.

It is an arithmetic number, because the mean of its divisors is an integer number (62382798).

Almost surely, 2^166354126 is an apocalyptic number.

166354126 is a deficient number, since it is larger than the sum of its proper divisors (83177066).

166354126 is an equidigital number, since it uses as much as digits as its factorization.

166354126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83177065.

The product of its digits is 25920, while the sum is 34.

The square root of 166354126 is about 12897.8341592688. The cubic root of 166354126 is about 549.9769973851.

The spelling of 166354126 in words is "one hundred sixty-six million, three hundred fifty-four thousand, one hundred twenty-six".