116021555 has 16 divisors (see below), whose sum is σ = 152179104. Its totient is φ = 84395520.

The previous prime is 116021551. The next prime is 116021567. The reversal of 116021555 is 555120611.

It is not a de Polignac number, because 116021555 - 2² = 116021551 is a prime.

It is a super-2 number, since 2×116021555² = 26922002449236050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116021551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8966 + ... + 17675.

It is an arithmetic number, because the mean of its divisors is an integer number (9511194).

Almost surely, 2^116021555 is an apocalyptic number.

116021555 is a deficient number, since it is larger than the sum of its proper divisors (36157549).

116021555 is a wasteful number, since it uses less digits than its factorization.

116021555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26726.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 116021555 is about 10771.3302335413. The cubic root of 116021555 is about 487.7301021998.

The spelling of 116021555 in words is "one hundred sixteen million, twenty-one thousand, five hundred fifty-five".