63497445960 has 512 divisors, whose sum is σ = 238629888000. Its totient is φ = 13328105472.

The previous prime is 63497445887. The next prime is 63497445997. The reversal of 63497445960 is 6954479436.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 63497445960.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11586501 + ... + 11591979.

It is an arithmetic number, because the mean of its divisors is an integer number (466074000).

Almost surely, 2^63497445960 is an apocalyptic number.

63497445960 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 63497445960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119314944000).

63497445960 is an abundant number, since it is smaller than the sum of its proper divisors (175132442040).

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

63497445960 is a wasteful number, since it uses less digits than its factorization.

63497445960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5565 (or 5561 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 57.

The spelling of 63497445960 in words is "sixty-three billion, four hundred ninety-seven million, four hundred forty-five thousand, nine hundred sixty".