77666703701 has 8 divisors (see below), whose sum is σ = 78463956480. Its totient is φ = 76870282032.

The previous prime is 77666703691. The next prime is 77666703703. The reversal of 77666703701 is 10730766677.

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 77666703701 - 2¹⁰ = 77666702677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77666703701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77666703703) 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, 19046 + ... + 394583.

It is an arithmetic number, because the mean of its divisors is an integer number (9807994560).

Almost surely, 2^77666703701 is an apocalyptic number.

It is an amenable number.

77666703701 is a deficient number, since it is larger than the sum of its proper divisors (797252779).

77666703701 is a wasteful number, since it uses less digits than its factorization.

77666703701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415555.

The product of its (nonzero) digits is 1555848, while the sum is 50.

The spelling of 77666703701 in words is "seventy-seven billion, six hundred sixty-six million, seven hundred three thousand, seven hundred one".