63216430446 has 32 divisors (see below), whose sum is σ = 136263341088. Its totient is φ = 19436227200.

The previous prime is 63216430391. The next prime is 63216430447. The reversal of 63216430446 is 64403461236.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63216430447) 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, 210001 + ... + 412956.

It is an arithmetic number, because the mean of its divisors is an integer number (4258229409).

Almost surely, 2^63216430446 is an apocalyptic number.

63216430446 is an abundant number, since it is smaller than the sum of its proper divisors (73046910642).

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

63216430446 is a wasteful number, since it uses less digits than its factorization.

63216430446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624276.

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 63216430446 in words is "sixty-three billion, two hundred sixteen million, four hundred thirty thousand, four hundred forty-six".