1161042016 has 24 divisors (see below), whose sum is σ = 2289311640. Its totient is φ = 579629568.

The previous prime is 1161041993. The next prime is 1161042017. The reversal of 1161042016 is 6102401611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161042017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6441 + ... + 48616.

It is an arithmetic number, because the mean of its divisors is an integer number (95387985).

Almost surely, 2^1161042016 is an apocalyptic number.

1161042016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1161042016 is a deficient number, since it is larger than the sum of its proper divisors (1128269624).

1161042016 is an equidigital number, since it uses as much as digits as its factorization.

1161042016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55726 (or 55718 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1161042016 is about 34074.0666196449. The cubic root of 1161042016 is about 1051.0320965826.

Adding to 1161042016 its reverse (6102401611), we get a palindrome (7263443627).

The spelling of 1161042016 in words is "one billion, one hundred sixty-one million, forty-two thousand, sixteen".