63402518016 has 280 divisors, whose sum is σ = 195110782944. Its totient is φ = 20558499840.

The previous prime is 63402517999. The next prime is 63402518033. The reversal of 63402518016 is 61081520436.

It is a happy number.

63402518016 is a `hidden beast` number, since 63 + 402 + 5 + 180 + 16 = 666.

It is an interprime number because it is at equal distance from previous prime (63402517999) and next prime (63402518033).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 13807881 + ... + 13812471.

Almost surely, 2^63402518016 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 63402518016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97555391472).

63402518016 is an abundant number, since it is smaller than the sum of its proper divisors (131708264928).

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

63402518016 is an frugal number, since it uses more digits than its factorization.

63402518016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664 (or 4633 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 63402518016 in words is "sixty-three billion, four hundred two million, five hundred eighteen thousand, sixteen".