7800065066 has 8 divisors (see below), whose sum is σ = 11972193024. Its totient is φ = 3809334060.

The previous prime is 7800065047. The next prime is 7800065071. The reversal of 7800065066 is 6605600087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45349130 + ... + 45349301.

It is an arithmetic number, because the mean of its divisors is an integer number (1496524128).

Almost surely, 2^7800065066 is an apocalyptic number.

7800065066 is a deficient number, since it is larger than the sum of its proper divisors (4172127958).

7800065066 is a wasteful number, since it uses less digits than its factorization.

7800065066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90698476.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 7800065066 is about 88317.9770261978. The cubic root of 7800065066 is about 1983.1979971271.

The spelling of 7800065066 in words is "seven billion, eight hundred million, sixty-five thousand, sixty-six".