20216003064 has 32 divisors (see below), whose sum is σ = 50609569920. Its totient is φ = 6729392736.

The previous prime is 20216003047. The next prime is 20216003099. The reversal of 20216003064 is 46030061202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561874 + ... + 596769.

It is an arithmetic number, because the mean of its divisors is an integer number (1581549060).

Almost surely, 2^20216003064 is an apocalyptic number.

20216003064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20216003064 is an abundant number, since it is smaller than the sum of its proper divisors (30393566856).

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

20216003064 is a wasteful number, since it uses less digits than its factorization.

20216003064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159379 (or 1159375 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20216003064 its reverse (46030061202), we get a palindrome (66246064266).

The spelling of 20216003064 in words is "twenty billion, two hundred sixteen million, three thousand, sixty-four".