1160121600 has 324 divisors, whose sum is σ = 4527231072. Its totient is φ = 281088000.

The previous prime is 1160121593. The next prime is 1160121601. The reversal of 1160121600 is 61210611.

1160121600 is a `hidden beast` number, since 1 + 1 + 60 + 1 + 2 + 1 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1160121601) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 632685 + ... + 634515.

Almost surely, 2^1160121600 is an apocalyptic number.

1160121600 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 1160121600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2263615536).

1160121600 is an abundant number, since it is smaller than the sum of its proper divisors (3367109472).

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

1160121600 is a wasteful number, since it uses less digits than its factorization.

1160121600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874 (or 1852 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1160121600 is about 34060.5578345394. The cubic root of 1160121600 is about 1050.7542879448.

It can be divided in two parts, 1160 and 121600, that added together give a triangular number (122760 = T₄₉₅).

The spelling of 1160121600 in words is "one billion, one hundred sixty million, one hundred twenty-one thousand, six hundred".