64153644 has 12 divisors (see below), whose sum is σ = 149691864. Its totient is φ = 21384544.

The previous prime is 64153627. The next prime is 64153651. The reversal of 64153644 is 44635146.

64153644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×64153644³ (a number of 24 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2673057 + ... + 2673080.

It is an arithmetic number, because the mean of its divisors is an integer number (12474322).

Almost surely, 2^64153644 is an apocalyptic number.

It is an amenable number.

64153644 is an abundant number, since it is smaller than the sum of its proper divisors (85538220).

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

64153644 is a wasteful number, since it uses less digits than its factorization.

64153644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5346144 (or 5346142 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 64153644 is about 8009.5969936071. The cubic root of 64153644 is about 400.3198358611.

It can be divided in two parts, 641 and 53644, that added together give a triangular number (54285 = T₃₂₉).

The spelling of 64153644 in words is "sixty-four million, one hundred fifty-three thousand, six hundred forty-four".