1163656630 has 64 divisors (see below), whose sum is σ = 2264215680. Its totient is φ = 429004800.

The previous prime is 1163656607. The next prime is 1163656631. The reversal of 1163656630 is 366563611.

It is a self number, because there is not a number n which added to its sum of digits gives 1163656630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163656631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2763820 + ... + 2764240.

It is an arithmetic number, because the mean of its divisors is an integer number (35378370).

Almost surely, 2^1163656630 is an apocalyptic number.

1163656630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1163656630 is a deficient number, since it is larger than the sum of its proper divisors (1100559050).

1163656630 is a wasteful number, since it uses less digits than its factorization.

1163656630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 1163656630 is about 34112.4116708274. The cubic root of 1163656630 is about 1051.8204639717.

The spelling of 1163656630 in words is "one billion, one hundred sixty-three million, six hundred fifty-six thousand, six hundred thirty".