64545163250 has 32 divisors (see below), whose sum is σ = 120849490944. Its totient is φ = 25813590000.

The previous prime is 64545163237. The next prime is 64545163259. The reversal of 64545163250 is 5236154546.

It is a happy number.

64545163250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64545163198 and 64545163207.

It is not an unprimeable number, because it can be changed into a prime (64545163259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1681775 + ... + 1719725.

It is an arithmetic number, because the mean of its divisors is an integer number (3776546592).

Almost surely, 2^64545163250 is an apocalyptic number.

64545163250 is a deficient number, since it is larger than the sum of its proper divisors (56304327694).

64545163250 is a wasteful number, since it uses less digits than its factorization.

64545163250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44771 (or 44761 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 64545163250 in words is "sixty-four billion, five hundred forty-five million, one hundred sixty-three thousand, two hundred fifty".