651606616111 has 8 divisors (see below), whose sum is σ = 735355429200. Its totient is φ = 571943111040.

The previous prime is 651606616081. The next prime is 651606616151. The reversal of 651606616111 is 111616606156.

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

It is a cyclic number.

It is not a de Polignac number, because 651606616111 - 2⁵ = 651606616079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651606616151) 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, 1021326666 + ... + 1021327303.

It is an arithmetic number, because the mean of its divisors is an integer number (91919428650).

Almost surely, 2^651606616111 is an apocalyptic number.

651606616111 is a deficient number, since it is larger than the sum of its proper divisors (83748813089).

651606616111 is a wasteful number, since it uses less digits than its factorization.

651606616111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042654009.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 651606616111 in words is "six hundred fifty-one billion, six hundred six million, six hundred sixteen thousand, one hundred eleven".