650666061 has 16 divisors (see below), whose sum is σ = 966481920. Its totient is φ = 432637920.

The previous prime is 650666059. The next prime is 650666087. The reversal of 650666061 is 160666056.

It is not a de Polignac number, because 650666061 - 2¹ = 650666059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650664061) 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, 21120 + ... + 41801.

It is an arithmetic number, because the mean of its divisors is an integer number (60405120).

Almost surely, 2^650666061 is an apocalyptic number.

It is an amenable number.

650666061 is a deficient number, since it is larger than the sum of its proper divisors (315815859).

650666061 is a wasteful number, since it uses less digits than its factorization.

650666061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63313 (or 63307 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 650666061 is about 25508.1567542620. The cubic root of 650666061 is about 866.5348854035.

The spelling of 650666061 in words is "six hundred fifty million, six hundred sixty-six thousand, sixty-one".