116611551 has 24 divisors (see below), whose sum is σ = 203827104. Its totient is φ = 62714880.

The previous prime is 116611549. The next prime is 116611567. The reversal of 116611551 is 155116611.

It is not a de Polignac number, because 116611551 - 2¹ = 116611549 is a prime.

It is a super-4 number, since 4×116611551⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116611511) 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 23 ways as a sum of consecutive naturals, for example, 53370 + ... + 55511.

It is an arithmetic number, because the mean of its divisors is an integer number (8492796).

Almost surely, 2^116611551 is an apocalyptic number.

116611551 is a deficient number, since it is larger than the sum of its proper divisors (87215553).

116611551 is a wasteful number, since it uses less digits than its factorization.

116611551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108911 (or 108908 counting only the distinct ones).

The product of its digits is 900, while the sum is 27.

The square root of 116611551 is about 10798.6828363463. The cubic root of 116611551 is about 488.5554442659. Note that the first 3 decimals are identical.

The spelling of 116611551 in words is "one hundred sixteen million, six hundred eleven thousand, five hundred fifty-one".