77210216120 has 16 divisors (see below), whose sum is σ = 173722986360. Its totient is φ = 30884086432.

The previous prime is 77210216113. The next prime is 77210216141. The reversal of 77210216120 is 2161201277.

It is a super-2 number, since 2×77210216120² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 965127662 + ... + 965127741.

Almost surely, 2^77210216120 is an apocalyptic number.

It is an amenable number.

77210216120 is an abundant number, since it is smaller than the sum of its proper divisors (96512770240).

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

77210216120 is a wasteful number, since it uses less digits than its factorization.

77210216120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930255414 (or 1930255410 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

Adding to 77210216120 its reverse (2161201277), we get a palindrome (79371417397).

The spelling of 77210216120 in words is "seventy-seven billion, two hundred ten million, two hundred sixteen thousand, one hundred twenty".