651015066 has 32 divisors (see below), whose sum is σ = 1447423488. Its totient is φ = 193849920.

The previous prime is 651015047. The next prime is 651015073. The reversal of 651015066 is 660510156.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 132201 + ... + 137036.

It is an arithmetic number, because the mean of its divisors is an integer number (45231984).

Almost surely, 2^651015066 is an apocalyptic number.

651015066 is an abundant number, since it is smaller than the sum of its proper divisors (796408422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

651015066 is a wasteful number, since it uses less digits than its factorization.

651015066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269286.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 651015066 is about 25514.9968841856. The cubic root of 651015066 is about 866.6897886994.

The spelling of 651015066 in words is "six hundred fifty-one million, fifteen thousand, sixty-six".