851940707066 has 16 divisors (see below), whose sum is σ = 1283796708480. Its totient is φ = 424011339360.

The previous prime is 851940707017. The next prime is 851940707071. The reversal of 851940707066 is 660707049158.

It is a super-3 number, since 3×851940707066³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 851940706999 and 851940707017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121856 + ... + 1311003.

It is an arithmetic number, because the mean of its divisors is an integer number (80237294280).

Almost surely, 2^851940707066 is an apocalyptic number.

851940707066 is a deficient number, since it is larger than the sum of its proper divisors (431856001414).

851940707066 is a wasteful number, since it uses less digits than its factorization.

851940707066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434229.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 851940707066 in words is "eight hundred fifty-one billion, nine hundred forty million, seven hundred seven thousand, sixty-six".