116172720 has 120 divisors (see below), whose sum is σ = 398563776. Its totient is φ = 30311424.

The previous prime is 116172697. The next prime is 116172737. The reversal of 116172720 is 27271611.

116172720 is a `hidden beast` number, since 1 + 1 + 617 + 27 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×116172720² = 26992201744396800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32124 + ... + 35556.

Almost surely, 2^116172720 is an apocalyptic number.

116172720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 116172720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199281888).

116172720 is an abundant number, since it is smaller than the sum of its proper divisors (282391056).

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

116172720 is a wasteful number, since it uses less digits than its factorization.

116172720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499 (or 3490 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 116172720 is about 10778.3449564393. The cubic root of 116172720 is about 487.9418321782.

The spelling of 116172720 in words is "one hundred sixteen million, one hundred seventy-two thousand, seven hundred twenty".