1232105616 has 120 divisors (see below), whose sum is σ = 4148256320. Its totient is φ = 333497088.

The previous prime is 1232105603. The next prime is 1232105621. The reversal of 1232105616 is 6165012321.

1232105616 is a `hidden beast` number, since 1 + 2 + 32 + 10 + 5 + 616 = 666.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 1232105616.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13015 + ... + 51318.

Almost surely, 2^1232105616 is an apocalyptic number.

1232105616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232105616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2074128160).

1232105616 is an abundant number, since it is smaller than the sum of its proper divisors (2916150704).

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

1232105616 is a wasteful number, since it uses less digits than its factorization.

1232105616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64373 (or 64364 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1232105616 is about 35101.3620248560. The cubic root of 1232105616 is about 1072.0523151494.

Adding to 1232105616 its reverse (6165012321), we get a palindrome (7397117937).

The spelling of 1232105616 in words is "one billion, two hundred thirty-two million, one hundred five thousand, six hundred sixteen".