1167213880 has 128 divisors (see below), whose sum is σ = 3191270400. Its totient is φ = 375072768.

The previous prime is 1167213857. The next prime is 1167213881. The reversal of 1167213880 is 883127611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167213881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1803717 + ... + 1804363.

It is an arithmetic number, because the mean of its divisors is an integer number (24931800).

Almost surely, 2^1167213880 is an apocalyptic number.

1167213880 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 1167213880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1595635200).

1167213880 is an abundant number, since it is smaller than the sum of its proper divisors (2024056520).

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

1167213880 is a wasteful number, since it uses less digits than its factorization.

1167213880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1167213880 is about 34164.5119971001. The cubic root of 1167213880 is about 1052.8911641777.

It can be divided in two parts, 11672 and 13880, that added together give a palindrome (25552).

The spelling of 1167213880 in words is "one billion, one hundred sixty-seven million, two hundred thirteen thousand, eight hundred eighty".