63377334456 has 64 divisors (see below), whose sum is σ = 161115000480. Its totient is φ = 20769876480.

The previous prime is 63377334443. The next prime is 63377334467. The reversal of 63377334456 is 65443377336.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 63377334399 and 63377334408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3617590 + ... + 3635066.

Almost surely, 2^63377334456 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 63377334456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80557500240).

63377334456 is an abundant number, since it is smaller than the sum of its proper divisors (97737666024).

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

63377334456 is a wasteful number, since it uses less digits than its factorization.

63377334456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20024 (or 20020 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 51.

The spelling of 63377334456 in words is "sixty-three billion, three hundred seventy-seven million, three hundred thirty-four thousand, four hundred fifty-six".