63351876660 has 192 divisors, whose sum is σ = 197200023552. Its totient is φ = 15114553344.

The previous prime is 63351876617. The next prime is 63351876667. The reversal of 63351876660 is 6667815336.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63351876667) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3815697 + ... + 3832263.

It is an arithmetic number, because the mean of its divisors is an integer number (1027083456).

Almost surely, 2^63351876660 is an apocalyptic number.

63351876660 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 63351876660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98600011776).

63351876660 is an abundant number, since it is smaller than the sum of its proper divisors (133848146892).

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

63351876660 is a wasteful number, since it uses less digits than its factorization.

63351876660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16782 (or 16780 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 63351876660 in words is "sixty-three billion, three hundred fifty-one million, eight hundred seventy-six thousand, six hundred sixty".