116780521 has 12 divisors (see below), whose sum is σ = 137952720. Its totient is φ = 97996080.

The previous prime is 116780513. The next prime is 116780527. The reversal of 116780521 is 125087611.

It is not a de Polignac number, because 116780521 - 2³ = 116780513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116780527) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 29551 + ... + 33268.

It is an arithmetic number, because the mean of its divisors is an integer number (11496060).

Almost surely, 2^116780521 is an apocalyptic number.

116780521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

116780521 is a deficient number, since it is larger than the sum of its proper divisors (21172199).

116780521 is a wasteful number, since it uses less digits than its factorization.

116780521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62856 (or 62843 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 116780521 is about 10806.5036436398. The cubic root of 116780521 is about 488.7913024709.

The spelling of 116780521 in words is "one hundred sixteen million, seven hundred eighty thousand, five hundred twenty-one".