663114540 has 96 divisors (see below), whose sum is σ = 2068706304. Its totient is φ = 157327360.

The previous prime is 663114527. The next prime is 663114577. The reversal of 663114540 is 45411366.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 663114498 and 663114507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20332 + ... + 41708.

It is an arithmetic number, because the mean of its divisors is an integer number (21549024).

Almost surely, 2^663114540 is an apocalyptic number.

663114540 is a gapful number since it is divisible by the number (60) 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 663114540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034353152).

663114540 is an abundant number, since it is smaller than the sum of its proper divisors (1405591764).

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

663114540 is a wasteful number, since it uses less digits than its factorization.

663114540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21447 (or 21445 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 663114540 is about 25751.0104656109. The cubic root of 663114540 is about 872.0261666951.

The spelling of 663114540 in words is "six hundred sixty-three million, one hundred fourteen thousand, five hundred forty".