768261355966 has 64 divisors (see below), whose sum is σ = 1311852681216. Its totient is φ = 334911024000.

The previous prime is 768261355957. The next prime is 768261355991. The reversal of 768261355966 is 669553162867.

It is a super-2 number, since 2×768261355966² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 768261355898 and 768261355907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50281120 + ... + 50296396.

It is an arithmetic number, because the mean of its divisors is an integer number (20497698144).

Almost surely, 2^768261355966 is an apocalyptic number.

768261355966 is a deficient number, since it is larger than the sum of its proper divisors (543591325250).

768261355966 is a wasteful number, since it uses less digits than its factorization.

768261355966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16817.

The product of its digits is 97977600, while the sum is 64.

The spelling of 768261355966 in words is "seven hundred sixty-eight billion, two hundred sixty-one million, three hundred fifty-five thousand, nine hundred sixty-six".