64247106650 has 12 divisors (see below), whose sum is σ = 119499618462. Its totient is φ = 25698842640.

The previous prime is 64247106631. The next prime is 64247106653. The reversal of 64247106650 is 5660174246.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 36238071769 + 28009034881 = 190363^2 + 167359^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64247106598 and 64247106607.

It is not an unprimeable number, because it can be changed into a prime (64247106653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 642471017 + ... + 642471116.

Almost surely, 2^64247106650 is an apocalyptic number.

64247106650 is a deficient number, since it is larger than the sum of its proper divisors (55252511812).

64247106650 is a wasteful number, since it uses less digits than its factorization.

64247106650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284942145 (or 1284942140 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 64247106650 in words is "sixty-four billion, two hundred forty-seven million, one hundred six thousand, six hundred fifty".