77161216573 has 8 divisors (see below), whose sum is σ = 88213952960. Its totient is φ = 66115906560.

The previous prime is 77161216567. The next prime is 77161216579. The reversal of 77161216573 is 37561216177.

It is an interprime number because it is at equal distance from previous prime (77161216567) and next prime (77161216579).

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-77161216573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77161216579) 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, 1834308 + ... + 1875901.

It is an arithmetic number, because the mean of its divisors is an integer number (11026744120).

Almost surely, 2^77161216573 is an apocalyptic number.

It is an amenable number.

77161216573 is a deficient number, since it is larger than the sum of its proper divisors (11052736387).

77161216573 is a wasteful number, since it uses less digits than its factorization.

77161216573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713187.

The product of its digits is 370440, while the sum is 46.

The spelling of 77161216573 in words is "seventy-seven billion, one hundred sixty-one million, two hundred sixteen thousand, five hundred seventy-three".