7766421700716 has 72 divisors (see below), whose sum is σ = 22436585633280. Its totient is φ = 2218952282976.

The previous prime is 7766421700693. The next prime is 7766421700717. The reversal of 7766421700716 is 6170071246677.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7766421700717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41059005 + ... + 41247723.

Almost surely, 2^{7766421700716} is an apocalyptic number.

It is an amenable number.

7766421700716 is an abundant number, since it is smaller than the sum of its proper divisors (14670163932564).

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

7766421700716 is a wasteful number, since it uses less digits than its factorization.

7766421700716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352043 (or 352038 counting only the distinct ones).

The product of its (nonzero) digits is 4148928, while the sum is 54.

The spelling of 7766421700716 in words is "seven trillion, seven hundred sixty-six billion, four hundred twenty-one million, seven hundred thousand, seven hundred sixteen".