1156056616 has 128 divisors (see below), whose sum is σ = 2625638400. Its totient is φ = 470292480.

The previous prime is 1156056589. The next prime is 1156056631. The reversal of 1156056616 is 6166506511.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9102745 + ... + 9102871.

It is an arithmetic number, because the mean of its divisors is an integer number (20512800).

Almost surely, 2^1156056616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1156056616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312819200).

1156056616 is an abundant number, since it is smaller than the sum of its proper divisors (1469581784).

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

1156056616 is a wasteful number, since it uses less digits than its factorization.

1156056616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1156056616 is about 34000.8325780414. The cubic root of 1156056616 is about 1049.5255955159.

It can be divided in two parts, 115605 and 6616, that added together give a palindrome (122221).

The spelling of 1156056616 in words is "one billion, one hundred fifty-six million, fifty-six thousand, six hundred sixteen".