7757045066 has 4 divisors (see below), whose sum is σ = 11635567602. Its totient is φ = 3878522532.

The previous prime is 7757045057. The next prime is 7757045099. The reversal of 7757045066 is 6605407577.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5153086225 + 2603958841 = 71785^2 + 51029^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7757045066.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939261265 + ... + 1939261268.

Almost surely, 2^7757045066 is an apocalyptic number.

7757045066 is a deficient number, since it is larger than the sum of its proper divisors (3878522536).

7757045066 is a wasteful number, since it uses less digits than its factorization.

7757045066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878522535.

The product of its (nonzero) digits is 1234800, while the sum is 47.

The square root of 7757045066 is about 88074.0885050762. The cubic root of 7757045066 is about 1979.5452707061.

The spelling of 7757045066 in words is "seven billion, seven hundred fifty-seven million, forty-five thousand, sixty-six".