1156715616 has 96 divisors (see below), whose sum is σ = 3554869248. Its totient is φ = 322421760.

The previous prime is 1156715561. The next prime is 1156715621. The reversal of 1156715616 is 6165176511.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6561 + ... + 48543.

It is an arithmetic number, because the mean of its divisors is an integer number (37029888).

Almost surely, 2^1156715616 is an apocalyptic number.

1156715616 is a gapful number since it is divisible by the number (16) 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 1156715616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1777434624).

1156715616 is an abundant number, since it is smaller than the sum of its proper divisors (2398153632).

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

1156715616 is a wasteful number, since it uses less digits than its factorization.

1156715616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42044 (or 42036 counting only the distinct ones).

The product of its digits is 37800, while the sum is 39.

The square root of 1156715616 is about 34010.5221365389. The cubic root of 1156715616 is about 1049.7249819413.

The spelling of 1156715616 in words is "one billion, one hundred fifty-six million, seven hundred fifteen thousand, six hundred sixteen".