77216318001 has 24 divisors (see below), whose sum is σ = 120608227584. Its totient is φ = 47418610560.

The previous prime is 77216317999. The next prime is 77216318017. The reversal of 77216318001 is 10081361277.

It is not a de Polignac number, because 77216318001 - 2¹ = 77216317999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77216318701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5361765 + ... + 5376146.

It is an arithmetic number, because the mean of its divisors is an integer number (5025342816).

Almost surely, 2^77216318001 is an apocalyptic number.

It is an amenable number.

77216318001 is a deficient number, since it is larger than the sum of its proper divisors (43391909583).

77216318001 is a wasteful number, since it uses less digits than its factorization.

77216318001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10737981 (or 10737978 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

Adding to 77216318001 its reverse (10081361277), we get a palindrome (87297679278).

The spelling of 77216318001 in words is "seventy-seven billion, two hundred sixteen million, three hundred eighteen thousand, one".