64545016 has 8 divisors (see below), whose sum is σ = 121021920. Its totient is φ = 32272504.

The previous prime is 64545011. The next prime is 64545031. The reversal of 64545016 is 61054546.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64545011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4034056 + ... + 4034071.

It is an arithmetic number, because the mean of its divisors is an integer number (15127740).

Almost surely, 2^64545016 is an apocalyptic number.

It is an amenable number.

64545016 is a deficient number, since it is larger than the sum of its proper divisors (56476904).

64545016 is a wasteful number, since it uses less digits than its factorization.

64545016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8068133 (or 8068129 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 64545016 is about 8033.9912870254. The cubic root of 64545016 is about 401.1322420459.

The spelling of 64545016 in words is "sixty-four million, five hundred forty-five thousand, sixteen".