766665552260 has 48 divisors (see below), whose sum is σ = 1712205949440. Its totient is φ = 287530767360.

The previous prime is 766665552239. The next prime is 766665552281. The reversal of 766665552260 is 62255566667.

It is an interprime number because it is at equal distance from previous prime (766665552239) and next prime (766665552281).

It is a super-2 number, since 2×766665552260² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 766665552196 and 766665552205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10362836 + ... + 10436555.

It is an arithmetic number, because the mean of its divisors is an integer number (35670957280).

Almost surely, 2^766665552260 is an apocalyptic number.

It is an amenable number.

766665552260 is an abundant number, since it is smaller than the sum of its proper divisors (945540397180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

766665552260 is a wasteful number, since it uses less digits than its factorization.

766665552260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20799516 (or 20799514 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 56.

The spelling of 766665552260 in words is "seven hundred sixty-six billion, six hundred sixty-five million, five hundred fifty-two thousand, two hundred sixty".