64453616 has 20 divisors (see below), whose sum is σ = 125010600. Its totient is φ = 32192832.

The previous prime is 64453607. The next prime is 64453621. The reversal of 64453616 is 61635446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21455 + ... + 24273.

It is an arithmetic number, because the mean of its divisors is an integer number (6250530).

Almost surely, 2^64453616 is an apocalyptic number.

It is an amenable number.

64453616 is a deficient number, since it is larger than the sum of its proper divisors (60556984).

64453616 is a wasteful number, since it uses less digits than its factorization.

64453616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256 (or 4250 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 64453616 is about 8028.3009410460. The cubic root of 64453616 is about 400.9428093636.

The spelling of 64453616 in words is "sixty-four million, four hundred fifty-three thousand, six hundred sixteen".