2662066757 has 6 divisors (see below), whose sum is σ = 3096689958. Its totient is φ = 2281771464.

The previous prime is 2662066753. The next prime is 2662066777. The reversal of 2662066757 is 7576602662.

It can be written as a sum of positive squares in only one way, i.e., 2609779396 + 52287361 = 51086^2 + 7231^2 .

It is not a de Polignac number, because 2662066757 - 2² = 2662066753 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2662066753) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27163898 + ... + 27163995.

It is an arithmetic number, because the mean of its divisors is an integer number (516114993).

Almost surely, 2^2662066757 is an apocalyptic number.

It is an amenable number.

2662066757 is a deficient number, since it is larger than the sum of its proper divisors (434623201).

2662066757 is an equidigital number, since it uses as much as digits as its factorization.

2662066757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54327907 (or 54327900 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 47.

The square root of 2662066757 is about 51595.2202921937. The cubic root of 2662066757 is about 1385.9247399872.

The spelling of 2662066757 in words is "two billion, six hundred sixty-two million, sixty-six thousand, seven hundred fifty-seven".