77066997611 has 8 divisors (see below), whose sum is σ = 83740032000. Its totient is φ = 70655650920.

The previous prime is 77066997571. The next prime is 77066997647. The reversal of 77066997611 is 11679966077.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77066997611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77066997671) 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, 65421311 + ... + 65422488.

It is an arithmetic number, because the mean of its divisors is an integer number (10467504000).

Almost surely, 2^77066997611 is an apocalyptic number.

77066997611 is a deficient number, since it is larger than the sum of its proper divisors (6673034389).

77066997611 is a wasteful number, since it uses less digits than its factorization.

77066997611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130843849.

The product of its (nonzero) digits is 6001128, while the sum is 59.

The spelling of 77066997611 in words is "seventy-seven billion, sixty-six million, nine hundred ninety-seven thousand, six hundred eleven".