1136249664 has 112 divisors (see below), whose sum is σ = 3295131840. Its totient is φ = 342691840.

The previous prime is 1136249659. The next prime is 1136249677. The reversal of 1136249664 is 4669426311.

It is a happy number.

It is a super-2 number, since 2×1136249664² = 2582126597880225792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490942 + ... + 493250.

It is an arithmetic number, because the mean of its divisors is an integer number (29420820).

Almost surely, 2^1136249664 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 1136249664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1647565920).

1136249664 is an abundant number, since it is smaller than the sum of its proper divisors (2158882176).

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

1136249664 is a wasteful number, since it uses less digits than its factorization.

1136249664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568 (or 2558 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 1136249664 is about 33708.3025974314. The cubic root of 1136249664 is about 1043.4971227943.

The spelling of 1136249664 in words is "one billion, one hundred thirty-six million, two hundred forty-nine thousand, six hundred sixty-four".