63660072000 has 224 divisors, whose sum is σ = 240235557120. Its totient is φ = 14550835200.

The previous prime is 63660071987. The next prime is 63660072059. The reversal of 63660072000 is 27006636.

63660072000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-3 number, since 3×63660072000³ (a number of 33 digits) contains 333 as substring.

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

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, 21465 + ... + 357464.

Almost surely, 2^63660072000 is an apocalyptic number.

63660072000 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 63660072000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120117778560).

63660072000 is an abundant number, since it is smaller than the sum of its proper divisors (176575485120).

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

63660072000 is a wasteful number, since it uses less digits than its factorization.

63660072000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378966 (or 378946 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

Adding to 63660072000 its reverse (27006636), we get a palindrome (63687078636).

The spelling of 63660072000 in words is "sixty-three billion, six hundred sixty million, seventy-two thousand".