1115011664 has 40 divisors (see below), whose sum is σ = 2427677952. Its totient is φ = 492243840.

The previous prime is 1115011631. The next prime is 1115011673. The reversal of 1115011664 is 4661105111.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 111752 + ... + 121319.

Almost surely, 2^1115011664 is an apocalyptic number.

It is an amenable number.

1115011664 is an abundant number, since it is smaller than the sum of its proper divisors (1312666288).

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

1115011664 is a wasteful number, since it uses less digits than its factorization.

1115011664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233115 (or 233109 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1115011664 is about 33391.7903682926. The cubic root of 1115011664 is about 1036.9547456513.

Adding to 1115011664 its reverse (4661105111), we get a palindrome (5776116775).

The spelling of 1115011664 in words is "one billion, one hundred fifteen million, eleven thousand, six hundred sixty-four".