1157121016 has 16 divisors (see below), whose sum is σ = 2210538600. Its totient is φ = 567644064.

The previous prime is 1157120999. The next prime is 1157121019. The reversal of 1157121016 is 6101217511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157121019) 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, 1364106 + ... + 1364953.

Almost surely, 2^1157121016 is an apocalyptic number.

It is an amenable number.

1157121016 is a deficient number, since it is larger than the sum of its proper divisors (1053417584).

1157121016 is a wasteful number, since it uses less digits than its factorization.

1157121016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729118 (or 2729114 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 25.

The square root of 1157121016 is about 34016.4815346914. The cubic root of 1157121016 is about 1049.8476017669.

Adding to 1157121016 its reverse (6101217511), we get a palindrome (7258338527).

The spelling of 1157121016 in words is "one billion, one hundred fifty-seven million, one hundred twenty-one thousand, sixteen".