63321154420 has 48 divisors (see below), whose sum is σ = 133891974720. Its totient is φ = 25153929216.

The previous prime is 63321154397. The next prime is 63321154427. The reversal of 63321154420 is 2445112336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63321154427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4749684 + ... + 4762996.

It is an arithmetic number, because the mean of its divisors is an integer number (2789416140).

Almost surely, 2^63321154420 is an apocalyptic number.

It is an amenable number.

63321154420 is an abundant number, since it is smaller than the sum of its proper divisors (70570820300).

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

63321154420 is a wasteful number, since it uses less digits than its factorization.

63321154420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14944 (or 14942 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 63321154420 its reverse (2445112336), we get a palindrome (65766266756).

The spelling of 63321154420 in words is "sixty-three billion, three hundred twenty-one million, one hundred fifty-four thousand, four hundred twenty".