115211616 has 48 divisors (see below), whose sum is σ = 325697904. Its totient is φ = 35449344.

The previous prime is 115211597. The next prime is 115211633. The reversal of 115211616 is 616112511.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×115211616² = 26547432922662912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44911 + ... + 47406.

It is an arithmetic number, because the mean of its divisors is an integer number (6785373).

Almost surely, 2^115211616 is an apocalyptic number.

115211616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

115211616 is an abundant number, since it is smaller than the sum of its proper divisors (210486288).

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

115211616 is a wasteful number, since it uses less digits than its factorization.

115211616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92343 (or 92335 counting only the distinct ones).

The product of its digits is 360, while the sum is 24.

The square root of 115211616 is about 10733.6674068093. The cubic root of 115211616 is about 486.5925134616.

The spelling of 115211616 in words is "one hundred fifteen million, two hundred eleven thousand, six hundred sixteen".