149168166 has 64 divisors (see below), whose sum is σ = 367234560. Its totient is φ = 39421440.

The previous prime is 149168153. The next prime is 149168167. The reversal of 149168166 is 661861941.

It is a super-2 number, since 2×149168166² = 44502283495607112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149168167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40356 + ... + 43896.

It is an arithmetic number, because the mean of its divisors is an integer number (5738040).

Almost surely, 2^149168166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149168166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183617280).

149168166 is an abundant number, since it is smaller than the sum of its proper divisors (218066394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149168166 is a wasteful number, since it uses less digits than its factorization.

149168166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629.

The product of its digits is 62208, while the sum is 42.

The square root of 149168166 is about 12213.4420209865. The cubic root of 149168166 is about 530.3452906018.

The spelling of 149168166 in words is "one hundred forty-nine million, one hundred sixty-eight thousand, one hundred sixty-six".