1061157816 has 96 divisors (see below), whose sum is σ = 3049628400. Its totient is φ = 332190720.

The previous prime is 1061157793. The next prime is 1061157829. The reversal of 1061157816 is 6187511601.

1061157816 is a `hidden beast` number, since 10 + 61 + 1 + 578 + 16 = 666.

It is a super-2 number, since 2×1061157816² = 2252111820915779712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 992130 + ... + 993198.

Almost surely, 2^1061157816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1061157816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524814200).

1061157816 is an abundant number, since it is smaller than the sum of its proper divisors (1988470584).

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

1061157816 is a wasteful number, since it uses less digits than its factorization.

1061157816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909 (or 1902 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 1061157816 is about 32575.4173572650. The cubic root of 1061157816 is about 1019.9839213152.

The spelling of 1061157816 in words is "one billion, sixty-one million, one hundred fifty-seven thousand, eight hundred sixteen".