77331666076 has 24 divisors (see below), whose sum is σ = 154669222400. Its totient is φ = 33140880432.

The previous prime is 77331666023. The next prime is 77331666101. The reversal of 77331666076 is 67066613377.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1389481 + ... + 1444063.

Almost surely, 2^77331666076 is an apocalyptic number.

It is an amenable number.

77331666076 is an abundant number, since it is smaller than the sum of its proper divisors (77337556324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77331666076 is a wasteful number, since it uses less digits than its factorization.

77331666076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105193 (or 105191 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 52.

The spelling of 77331666076 in words is "seventy-seven billion, three hundred thirty-one million, six hundred sixty-six thousand, seventy-six".