63922570656 has 384 divisors, whose sum is σ = 206438400000. Its totient is φ = 16914852864.

The previous prime is 63922570619. The next prime is 63922570661. The reversal of 63922570656 is 65607522936.

It is a junction number, because it is equal to n+sod(n) for n = 63922570599 and 63922570608.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128101095 + ... + 128101593.

It is an arithmetic number, because the mean of its divisors is an integer number (537600000).

Almost surely, 2^63922570656 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 63922570656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103219200000).

63922570656 is an abundant number, since it is smaller than the sum of its proper divisors (142515829344).

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

63922570656 is a wasteful number, since it uses less digits than its factorization.

63922570656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 51.

The spelling of 63922570656 in words is "sixty-three billion, nine hundred twenty-two million, five hundred seventy thousand, six hundred fifty-six".