766655028846 has 128 divisors (see below), whose sum is σ = 2062017976320. Its totient is φ = 206116876800.

The previous prime is 766655028817. The next prime is 766655028851. The reversal of 766655028846 is 648820556667.

It is a happy number.

It is a super-2 number, since 2×766655028846² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42794631 + ... + 42812541.

It is an arithmetic number, because the mean of its divisors is an integer number (16109515440).

Almost surely, 2^766655028846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 766655028846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031008988160).

766655028846 is an abundant number, since it is smaller than the sum of its proper divisors (1295362947474).

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

766655028846 is a wasteful number, since it uses less digits than its factorization.

766655028846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24607 (or 24601 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 63.

The spelling of 766655028846 in words is "seven hundred sixty-six billion, six hundred fifty-five million, twenty-eight thousand, eight hundred forty-six".