1156711680 has 432 divisors, whose sum is σ = 4285532160. Its totient is φ = 287539200.

The previous prime is 1156711679. The next prime is 1156711693. The reversal of 1156711680 is 861176511.

1156711680 is a `hidden beast` number, since 1 + 1 + 567 + 1 + 16 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14641881 + ... + 14641959.

Almost surely, 2^1156711680 is an apocalyptic number.

1156711680 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 1156711680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2142766080).

1156711680 is an abundant number, since it is smaller than the sum of its proper divisors (3128820480).

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

1156711680 is a wasteful number, since it uses less digits than its factorization.

1156711680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 1156711680 is about 34010.4642720443. The cubic root of 1156711680 is about 1049.7237912936.

The spelling of 1156711680 in words is "one billion, one hundred fifty-six million, seven hundred eleven thousand, six hundred eighty".