64025036650 has 12 divisors (see below), whose sum is σ = 119086568262. Its totient is φ = 25610014640.

The previous prime is 64025036629. The next prime is 64025036657. The reversal of 64025036650 is 5663052046.

It can be written as a sum of positive squares in 3 ways, for example, as 61477714809 + 2547321841 = 247947^2 + 50471^2 .

It is not an unprimeable number, because it can be changed into a prime (64025036657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 640250317 + ... + 640250416.

Almost surely, 2^64025036650 is an apocalyptic number.

64025036650 is a deficient number, since it is larger than the sum of its proper divisors (55061531612).

64025036650 is a wasteful number, since it uses less digits than its factorization.

64025036650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280500745 (or 1280500740 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 64025036650 its reverse (5663052046), we get a palindrome (69688088696).

The spelling of 64025036650 in words is "sixty-four billion, twenty-five million, thirty-six thousand, six hundred fifty".