166022351 has 4 divisors (see below), whose sum is σ = 181115304. Its totient is φ = 150929400.

The previous prime is 166022333. The next prime is 166022383. The reversal of 166022351 is 153220661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153220661 = 11 ⋅13929151.

It is a cyclic number.

It is not a de Polignac number, because 166022351 - 2⁶ = 166022287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166022351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166012351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7546460 + ... + 7546481.

It is an arithmetic number, because the mean of its divisors is an integer number (45278826).

Almost surely, 2^166022351 is an apocalyptic number.

166022351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

166022351 is a deficient number, since it is larger than the sum of its proper divisors (15092953).

166022351 is a wasteful number, since it uses less digits than its factorization.

166022351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15092952.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 166022351 is about 12884.9660845499. The cubic root of 166022351 is about 549.6111311818.

The spelling of 166022351 in words is "one hundred sixty-six million, twenty-two thousand, three hundred fifty-one".