851066656007 has 16 divisors (see below), whose sum is σ = 935768236032. Its totient is φ = 770523288960.

The previous prime is 851066655991. The next prime is 851066656009. The reversal of 851066656007 is 700656660158.

It is a cyclic number.

It is not a de Polignac number, because 851066656007 - 2⁴ = 851066655991 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 (851066656009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4747103 + ... + 4923120.

It is an arithmetic number, because the mean of its divisors is an integer number (58485514752).

Almost surely, 2^851066656007 is an apocalyptic number.

851066656007 is a deficient number, since it is larger than the sum of its proper divisors (84701580025).

851066656007 is a wasteful number, since it uses less digits than its factorization.

851066656007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9670438.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 851066656007 in words is "eight hundred fifty-one billion, sixty-six million, six hundred fifty-six thousand, seven".