680202266066 has 32 divisors (see below), whose sum is σ = 1059023160000. Its totient is φ = 327274048192.

The previous prime is 680202266063. The next prime is 680202266069. The reversal of 680202266066 is 660662202086.

It is an interprime number because it is at equal distance from previous prime (680202266063) and next prime (680202266069).

It is a super-2 number, since 2×680202266066² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (680202266063) 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, 51294545 + ... + 51307803.

It is an arithmetic number, because the mean of its divisors is an integer number (33094473750).

Almost surely, 2^680202266066 is an apocalyptic number.

680202266066 is a deficient number, since it is larger than the sum of its proper divisors (378820893934).

680202266066 is a wasteful number, since it uses less digits than its factorization.

680202266066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16186.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 680202266066 in words is "six hundred eighty billion, two hundred two million, two hundred sixty-six thousand, sixty-six".