1161010000 has 50 divisors (see below), whose sum is σ = 2810945522. Its totient is φ = 464400000.

The previous prime is 1161009929. The next prime is 1161010021. The reversal of 1161010000 is 101611.

It can be written as a sum of positive squares in 5 ways, for example, as 831514896 + 329495104 = 28836^2 + 18152^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 48051 + ... + 68050.

Almost surely, 2^1161010000 is an apocalyptic number.

1161010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161010000 is an abundant number, since it is smaller than the sum of its proper divisors (1649935522).

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

1161010000 is an equidigital number, since it uses as much as digits as its factorization.

1161010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116129 (or 116108 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1161010000 is about 34073.5968163034. The cubic root of 1161010000 is about 1051.0224356767.

Adding to 1161010000 its reverse (101611), we get a palindrome (1161111611).

The spelling of 1161010000 in words is "one billion, one hundred sixty-one million, ten thousand".