66770777704411 has 8 divisors (see below), whose sum is σ = 75190553192448. Its totient is φ = 58742619681000.

The previous prime is 66770777704391. The next prime is 66770777704427. The reversal of 66770777704411 is 11440777707766.

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

It is a cyclic number.

It is not a de Polignac number, because 66770777704411 - 2²¹ = 66770775607259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66770777704441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97904365795 + ... + 97904366476.

It is an arithmetic number, because the mean of its divisors is an integer number (9398819149056).

Almost surely, 2^{66770777704411} is an apocalyptic number.

66770777704411 is a deficient number, since it is larger than the sum of its proper divisors (8419775488037).

66770777704411 is a wasteful number, since it uses less digits than its factorization.

66770777704411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195808732313.

The product of its (nonzero) digits is 67765824, while the sum is 64.

The spelling of 66770777704411 in words is "sixty-six trillion, seven hundred seventy billion, seven hundred seventy-seven million, seven hundred four thousand, four hundred eleven".