1155616506 has 24 divisors (see below), whose sum is σ = 2731457664. Its totient is φ = 350186760.

The previous prime is 1155616489. The next prime is 1155616507. The reversal of 1155616506 is 6056165511.

1155616506 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1155616507) 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, 2918026 + ... + 2918421.

It is an arithmetic number, because the mean of its divisors is an integer number (113810736).

Almost surely, 2^1155616506 is an apocalyptic number.

1155616506 is an abundant number, since it is smaller than the sum of its proper divisors (1575841158).

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

1155616506 is a wasteful number, since it uses less digits than its factorization.

1155616506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5836466 (or 5836463 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 1155616506 is about 33994.3599145505. The cubic root of 1155616506 is about 1049.3923940413.

The spelling of 1155616506 in words is "one billion, one hundred fifty-five million, six hundred sixteen thousand, five hundred six".