651320061 has 8 divisors (see below), whose sum is σ = 992487744. Its totient is φ = 372182880.

The previous prime is 651320053. The next prime is 651320069. The reversal of 651320061 is 160023156.

It is an interprime number because it is at equal distance from previous prime (651320053) and next prime (651320069).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 651320061 - 2³ = 651320053 is a prime.

It is a super-2 number, since 2×651320061² = 848435643722087442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651320069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15507600 + ... + 15507641.

It is an arithmetic number, because the mean of its divisors is an integer number (124060968).

Almost surely, 2^651320061 is an apocalyptic number.

It is an amenable number.

651320061 is a deficient number, since it is larger than the sum of its proper divisors (341167683).

651320061 is a wasteful number, since it uses less digits than its factorization.

651320061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31015251.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 651320061 is about 25520.9729634276. The cubic root of 651320061 is about 866.8251131575.

The spelling of 651320061 in words is "six hundred fifty-one million, three hundred twenty thousand, sixty-one".