149116668 has 12 divisors (see below), whose sum is σ = 347938920. Its totient is φ = 49705552.

The previous prime is 149116663. The next prime is 149116679. The reversal of 149116668 is 866611941.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149116663) 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, 6213183 + ... + 6213206.

It is an arithmetic number, because the mean of its divisors is an integer number (28994910).

Almost surely, 2^149116668 is an apocalyptic number.

It is an amenable number.

149116668 is an abundant number, since it is smaller than the sum of its proper divisors (198822252).

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

149116668 is a wasteful number, since it uses less digits than its factorization.

149116668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12426396 (or 12426394 counting only the distinct ones).

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

The square root of 149116668 is about 12211.3335881058. Note that the first 3 decimals coincide. The cubic root of 149116668 is about 530.2842524100.

The spelling of 149116668 in words is "one hundred forty-nine million, one hundred sixteen thousand, six hundred sixty-eight".