5663887161660 has 672 divisors, whose sum is σ = 22116638218752. Its totient is φ = 1185859284480.

The previous prime is 5663887161649. The next prime is 5663887161683. The reversal of 5663887161660 is 661617883665.

5663887161660 is a `hidden beast` number, since 5 + 6 + 6 + 3 + 8 + 8 + 7 + 1 + 616 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 173791887 + ... + 173824473.

It is an arithmetic number, because the mean of its divisors is an integer number (32911664016).

Almost surely, 2^{5663887161660} 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 5663887161660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11058319109376).

5663887161660 is an abundant number, since it is smaller than the sum of its proper divisors (16452751057092).

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

5663887161660 is a wasteful number, since it uses less digits than its factorization.

5663887161660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32765 (or 32748 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 5663887161660 in words is "five trillion, six hundred sixty-three billion, eight hundred eighty-seven million, one hundred sixty-one thousand, six hundred sixty".