116720515 has 16 divisors (see below), whose sum is σ = 153849600. Its totient is φ = 84614112.

The previous prime is 116720507. The next prime is 116720531. The reversal of 116720515 is 515027611.

It is a cyclic number.

It is not a de Polignac number, because 116720515 - 2³ = 116720507 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24525 + ... + 28894.

It is an arithmetic number, because the mean of its divisors is an integer number (9615600).

Almost surely, 2^116720515 is an apocalyptic number.

116720515 is a deficient number, since it is larger than the sum of its proper divisors (37129085).

116720515 is a wasteful number, since it uses less digits than its factorization.

116720515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53466.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 116720515 is about 10803.7269032496. The cubic root of 116720515 is about 488.7075686548.

The spelling of 116720515 in words is "one hundred sixteen million, seven hundred twenty thousand, five hundred fifteen".