1161656104 has 64 divisors (see below), whose sum is σ = 2641541760. Its totient is φ = 467527680.

The previous prime is 1161656077. The next prime is 1161656113. The reversal of 1161656104 is 4016561611.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542524 + ... + 544660.

It is an arithmetic number, because the mean of its divisors is an integer number (41274090).

Almost surely, 2^1161656104 is an apocalyptic number.

1161656104 is a gapful number since it is divisible by the number (14) 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 1161656104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1320770880).

1161656104 is an abundant number, since it is smaller than the sum of its proper divisors (1479885656).

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

1161656104 is a wasteful number, since it uses less digits than its factorization.

1161656104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1161656104 is about 34083.0765043298. The cubic root of 1161656104 is about 1051.2173647675.

The spelling of 1161656104 in words is "one billion, one hundred sixty-one million, six hundred fifty-six thousand, one hundred four".