1663746112 has 56 divisors (see below), whose sum is σ = 3802075200. Its totient is φ = 707566080.

The previous prime is 1663746079. The next prime is 1663746127. The reversal of 1663746112 is 2116473661.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1663746112² = 5536102250390233088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44514 + ... + 72862.

It is an arithmetic number, because the mean of its divisors is an integer number (67894200).

Almost surely, 2^1663746112 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 1663746112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1901037600).

1663746112 is an abundant number, since it is smaller than the sum of its proper divisors (2138329088).

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

1663746112 is a wasteful number, since it uses less digits than its factorization.

1663746112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28499 (or 28489 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 1663746112 is about 40789.0440191971. The cubic root of 1663746112 is about 1184.9381564929.

The spelling of 1663746112 in words is "one billion, six hundred sixty-three million, seven hundred forty-six thousand, one hundred twelve".