77511032066 has 8 divisors (see below), whose sum is σ = 125210128764. Its totient is φ = 35774322480.

The previous prime is 77511032051. The next prime is 77511032099. The reversal of 77511032066 is 66023011577.

It can be written as a sum of positive squares in 2 ways, for example, as 77295676441 + 215355625 = 278021^2 + 14675^2 .

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, 1490596745 + ... + 1490596796.

Almost surely, 2^77511032066 is an apocalyptic number.

77511032066 is a deficient number, since it is larger than the sum of its proper divisors (47699096698).

77511032066 is a wasteful number, since it uses less digits than its factorization.

77511032066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981193556.

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 77511032066 in words is "seventy-seven billion, five hundred eleven million, thirty-two thousand, sixty-six".