1156633968 has 160 divisors (see below), whose sum is σ = 3631513600. Its totient is φ = 309858048.

The previous prime is 1156633957. The next prime is 1156633979. The reversal of 1156633968 is 8693366511.

It is an interprime number because it is at equal distance from previous prime (1156633957) and next prime (1156633979).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656673 + ... + 658431.

It is an arithmetic number, because the mean of its divisors is an integer number (22696960).

Almost surely, 2^1156633968 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 1156633968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1815756800).

1156633968 is an abundant number, since it is smaller than the sum of its proper divisors (2474879632).

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

1156633968 is a wasteful number, since it uses less digits than its factorization.

1156633968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899 (or 1893 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 1156633968 is about 34009.3217809471. The cubic root of 1156633968 is about 1049.7002827093.

The spelling of 1156633968 in words is "one billion, one hundred fifty-six million, six hundred thirty-three thousand, nine hundred sixty-eight".