149943664 has 40 divisors (see below), whose sum is σ = 314167392. Its totient is φ = 68916480.

The previous prime is 149943653. The next prime is 149943671. The reversal of 149943664 is 466349941.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53334 + ... + 56074.

Almost surely, 2^149943664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149943664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157083696).

149943664 is an abundant number, since it is smaller than the sum of its proper divisors (164223728).

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

149943664 is a wasteful number, since it uses less digits than its factorization.

149943664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025 (or 3019 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The square root of 149943664 is about 12245.1485903602. The cubic root of 149943664 is about 531.2627585586.

The spelling of 149943664 in words is "one hundred forty-nine million, nine hundred forty-three thousand, six hundred sixty-four".