1156606120 has 16 divisors (see below), whose sum is σ = 2602363860. Its totient is φ = 462642432.

The previous prime is 1156606111. The next prime is 1156606123. The reversal of 1156606120 is 216066511.

It can be written as a sum of positive squares in 2 ways, for example, as 978063076 + 178543044 = 31274^2 + 13362^2 .

It is not an unprimeable number, because it can be changed into a prime (1156606123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14457537 + ... + 14457616.

Almost surely, 2^1156606120 is an apocalyptic number.

1156606120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1156606120 is an abundant number, since it is smaller than the sum of its proper divisors (1445757740).

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

1156606120 is a wasteful number, since it uses less digits than its factorization.

1156606120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28915164 (or 28915160 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1156606120 is about 34008.9123613208. The cubic root of 1156606120 is about 1049.6918581806.

The spelling of 1156606120 in words is "one billion, one hundred fifty-six million, six hundred six thousand, one hundred twenty".