65149672 has 32 divisors (see below), whose sum is σ = 140025600. Its totient is φ = 27837504.

The previous prime is 65149657. The next prime is 65149703. The reversal of 65149672 is 27694156.

65149672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19329 + ... + 22447.

It is an arithmetic number, because the mean of its divisors is an integer number (4375800).

Almost surely, 2^65149672 is an apocalyptic number.

It is an amenable number.

65149672 is an abundant number, since it is smaller than the sum of its proper divisors (74875928).

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

65149672 is a wasteful number, since it uses less digits than its factorization.

65149672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3505 (or 3501 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 65149672 is about 8071.5346743974. The cubic root of 65149672 is about 402.3809495782.

The spelling of 65149672 in words is "sixty-five million, one hundred forty-nine thousand, six hundred seventy-two".