1161671082 has 64 divisors (see below), whose sum is σ = 2787692544. Its totient is φ = 318018240.

The previous prime is 1161671059. The next prime is 1161671099. The reversal of 1161671082 is 2801761611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 25923 + ... + 54729.

It is an arithmetic number, because the mean of its divisors is an integer number (43557696).

Almost surely, 2^1161671082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161671082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1393846272).

1161671082 is an abundant number, since it is smaller than the sum of its proper divisors (1626021462).

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

1161671082 is a wasteful number, since it uses less digits than its factorization.

1161671082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28883.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 1161671082 is about 34083.2962314386. The cubic root of 1161671082 is about 1051.2218827615.

The spelling of 1161671082 in words is "one billion, one hundred sixty-one million, six hundred seventy-one thousand, eighty-two".