1155011516 has 24 divisors (see below), whose sum is σ = 2177193984. Its totient is φ = 534576240.

The previous prime is 1155011503. The next prime is 1155011527. The reversal of 1155011516 is 6151105511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199640 + ... + 205343.

It is an arithmetic number, because the mean of its divisors is an integer number (90716416).

Almost surely, 2^1155011516 is an apocalyptic number.

It is an amenable number.

1155011516 is a deficient number, since it is larger than the sum of its proper divisors (1022182468).

1155011516 is a wasteful number, since it uses less digits than its factorization.

1155011516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405041 (or 405039 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 26.

The square root of 1155011516 is about 33985.4603617488. The cubic root of 1155011516 is about 1049.2092356079.

The spelling of 1155011516 in words is "one billion, one hundred fifty-five million, eleven thousand, five hundred sixteen".