1135660656 has 80 divisors (see below), whose sum is σ = 3345348384. Its totient is φ = 328876032.

The previous prime is 1135660651. The next prime is 1135660661. The reversal of 1135660656 is 6560665311.

It is an interprime number because it is at equal distance from previous prime (1135660651) and next prime (1135660661).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135660651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42921 + ... + 64136.

Almost surely, 2^1135660656 is an apocalyptic number.

1135660656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1135660656 is an abundant number, since it is smaller than the sum of its proper divisors (2209687728).

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

1135660656 is a wasteful number, since it uses less digits than its factorization.

1135660656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107098 (or 107092 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 1135660656 is about 33699.5646262678. The cubic root of 1135660656 is about 1043.3167826200.

The spelling of 1135660656 in words is "one billion, one hundred thirty-five million, six hundred sixty thousand, six hundred fifty-six".