1115501616 has 60 divisors (see below), whose sum is σ = 3126899568. Its totient is φ = 371233152.

The previous prime is 1115501599. The next prime is 1115501623. The reversal of 1115501616 is 6161055111.

It is a super-2 number, since 2×1115501616² = 2488687710597222912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1115501616.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88101 + ... + 99963.

Almost surely, 2^1115501616 is an apocalyptic number.

1115501616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1115501616 is an abundant number, since it is smaller than the sum of its proper divisors (2011397952).

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

1115501616 is a wasteful number, since it uses less digits than its factorization.

1115501616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12530 (or 12521 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The square root of 1115501616 is about 33399.1259765881. The cubic root of 1115501616 is about 1037.1066076363.

Adding to 1115501616 its reverse (6161055111), we get a palindrome (7276556727).

The spelling of 1115501616 in words is "one billion, one hundred fifteen million, five hundred one thousand, six hundred sixteen".