1161413680 has 60 divisors (see below), whose sum is σ = 3141160560. Its totient is φ = 398197632.

The previous prime is 1161413677. The next prime is 1161413713. The reversal of 1161413680 is 863141611.

It is a super-2 number, since 2×1161413680² = 2697763472182284800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144220 + ... + 152059.

It is an arithmetic number, because the mean of its divisors is an integer number (52352676).

Almost surely, 2^1161413680 is an apocalyptic number.

1161413680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161413680 is an abundant number, since it is smaller than the sum of its proper divisors (1979746880).

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

1161413680 is a wasteful number, since it uses less digits than its factorization.

1161413680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296306 (or 296293 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1161413680 is about 34079.5199496707. The cubic root of 1161413680 is about 1051.1442341031.

The spelling of 1161413680 in words is "one billion, one hundred sixty-one million, four hundred thirteen thousand, six hundred eighty".