7766258622816 has 96 divisors (see below), whose sum is σ = 20652893388288. Its totient is φ = 2555094689280.

The previous prime is 7766258622799. The next prime is 7766258622851. The reversal of 7766258622816 is 6182268526677.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388766 + ... + 4178658.

It is an arithmetic number, because the mean of its divisors is an integer number (215134306128).

Almost surely, 2^{7766258622816} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7766258622816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10326446694144).

7766258622816 is an abundant number, since it is smaller than the sum of its proper divisors (12886634765472).

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

7766258622816 is a wasteful number, since it uses less digits than its factorization.

7766258622816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790284 (or 2790276 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 66.

The spelling of 7766258622816 in words is "seven trillion, seven hundred sixty-six billion, two hundred fifty-eight million, six hundred twenty-two thousand, eight hundred sixteen".