1163640500 has 48 divisors (see below), whose sum is σ = 2772439488. Its totient is φ = 423140000.

The previous prime is 1163640487. The next prime is 1163640529. The reversal of 1163640500 is 50463611.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1163640500.

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, 100286 + ... + 111285.

It is an arithmetic number, because the mean of its divisors is an integer number (57759156).

Almost surely, 2^1163640500 is an apocalyptic number.

1163640500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163640500 is an abundant number, since it is smaller than the sum of its proper divisors (1608798988).

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

1163640500 is a wasteful number, since it uses less digits than its factorization.

1163640500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211601 (or 211589 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1163640500 is about 34112.1752457975. The cubic root of 1163640500 is about 1051.8156040207.

The spelling of 1163640500 in words is "one billion, one hundred sixty-three million, six hundred forty thousand, five hundred".