651016506 has 32 divisors (see below), whose sum is σ = 1491959808. Its totient is φ = 185514480.

The previous prime is 651016501. The next prime is 651016507. The reversal of 651016506 is 605610156.

It is not an unprimeable number, because it can be changed into a prime (651016501) 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 15 ways as a sum of consecutive naturals, for example, 4150 + ... + 36321.

It is an arithmetic number, because the mean of its divisors is an integer number (46623744).

Almost surely, 2^651016506 is an apocalyptic number.

651016506 is an abundant number, since it is smaller than the sum of its proper divisors (840943302).

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

651016506 is a wasteful number, since it uses less digits than its factorization.

651016506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40866.

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

The square root of 651016506 is about 25515.0251028683. The cubic root of 651016506 is about 866.6904277180.

The spelling of 651016506 in words is "six hundred fifty-one million, sixteen thousand, five hundred six".