76664346481061 has 8 divisors (see below), whose sum is σ = 78763876525944. Its totient is φ = 74566264893120.

The previous prime is 76664346481027. The next prime is 76664346481067. The reversal of 76664346481061 is 16018464346667.

It can be written as a sum of positive squares in 4 ways, for example, as 31235870276836 + 45428476204225 = 5588906^2 + 6740065^2 .

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 76664346481061 - 2²² = 76664342286757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76664346480985 and 76664346481003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76664346481067) 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, 362006930 + ... + 362218643.

It is an arithmetic number, because the mean of its divisors is an integer number (9845484565743).

Almost surely, 2^{76664346481061} is an apocalyptic number.

It is an amenable number.

76664346481061 is a deficient number, since it is larger than the sum of its proper divisors (2099530044883).

76664346481061 is a wasteful number, since it uses less digits than its factorization.

76664346481061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724228471.

The product of its (nonzero) digits is 83607552, while the sum is 62.

The spelling of 76664346481061 in words is "seventy-six trillion, six hundred sixty-four billion, three hundred forty-six million, four hundred eighty-one thousand, sixty-one".