116161551 has 12 divisors (see below), whose sum is σ = 183042600. Its totient is φ = 70400880.

The previous prime is 116161511. The next prime is 116161553. The reversal of 116161551 is 155161611.

It is not a de Polignac number, because 116161551 - 2⁹ = 116161039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116161553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 586576 + ... + 586773.

It is an arithmetic number, because the mean of its divisors is an integer number (15253550).

Almost surely, 2^116161551 is an apocalyptic number.

116161551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

116161551 is a deficient number, since it is larger than the sum of its proper divisors (66881049).

116161551 is a wasteful number, since it uses less digits than its factorization.

116161551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173366 (or 1173363 counting only the distinct ones).

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

The square root of 116161551 is about 10777.8268217670. The cubic root of 116161551 is about 487.9261945512.

The spelling of 116161551 in words is "one hundred sixteen million, one hundred sixty-one thousand, five hundred fifty-one".