64146650 has 12 divisors (see below), whose sum is σ = 119312862. Its totient is φ = 25658640.

The previous prime is 64146631. The next prime is 64146659. The reversal of 64146650 is 5664146.

It can be written as a sum of positive squares in 3 ways, for example, as 54715609 + 9431041 = 7397^2 + 3071^2 .

It is a super-2 number, since 2×64146650² = 8229585412445000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64146659) 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, 641417 + ... + 641516.

Almost surely, 2^64146650 is an apocalyptic number.

64146650 is a deficient number, since it is larger than the sum of its proper divisors (55166212).

64146650 is a wasteful number, since it uses less digits than its factorization.

64146650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282945 (or 1282940 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 64146650 is about 8009.1603804644. The cubic root of 64146650 is about 400.3052877725.

The spelling of 64146650 in words is "sixty-four million, one hundred forty-six thousand, six hundred fifty".