651171216016 has 40 divisors (see below), whose sum is σ = 1328107629600. Its totient is φ = 308435339520.

The previous prime is 651171216011. The next prime is 651171216019. The reversal of 651171216016 is 610612171156.

It is a super-2 number, since 2×651171216016² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (651171216011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9819900 + ... + 9885988.

It is an arithmetic number, because the mean of its divisors is an integer number (33202690740).

Almost surely, 2^651171216016 is an apocalyptic number.

It is an amenable number.

651171216016 is an abundant number, since it is smaller than the sum of its proper divisors (676936413584).

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

651171216016 is a wasteful number, since it uses less digits than its factorization.

651171216016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98527 (or 98521 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The spelling of 651171216016 in words is "six hundred fifty-one billion, one hundred seventy-one million, two hundred sixteen thousand, sixteen".