1151115648 has 64 divisors (see below), whose sum is σ = 3080110320. Its totient is φ = 380887040.

The previous prime is 1151115619. The next prime is 1151115659. The reversal of 1151115648 is 8465111511.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×1151115648³ (a number of 28 digits) contains 333 as substring.

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, 41668 + ... + 63548.

Almost surely, 2^1151115648 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 1151115648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1540055160).

1151115648 is an abundant number, since it is smaller than the sum of its proper divisors (1928994672).

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

1151115648 is a wasteful number, since it uses less digits than its factorization.

1151115648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22035 (or 22023 counting only the distinct ones).

The product of its digits is 4800, while the sum is 33.

The square root of 1151115648 is about 33928.0952604180. The cubic root of 1151115648 is about 1048.0282415714.

The spelling of 1151115648 in words is "one billion, one hundred fifty-one million, one hundred fifteen thousand, six hundred forty-eight".