16721462130 has 64 divisors (see below), whose sum is σ = 41657476608. Its totient is φ = 4292616960.

The previous prime is 16721462113. The next prime is 16721462137. The reversal of 16721462130 is 3126412761.

It is a junction number, because it is equal to n+sod(n) for n = 16721462091 and 16721462100.

It is not an unprimeable number, because it can be changed into a prime (16721462137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11197 + ... + 183216.

It is an arithmetic number, because the mean of its divisors is an integer number (650898072).

Almost surely, 2^16721462130 is an apocalyptic number.

16721462130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16721462130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20828738304).

16721462130 is an abundant number, since it is smaller than the sum of its proper divisors (24936014478).

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

16721462130 is a wasteful number, since it uses less digits than its factorization.

16721462130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194531.

The product of its (nonzero) digits is 12096, while the sum is 33.

Adding to 16721462130 its reverse (3126412761), we get a palindrome (19847874891).

The spelling of 16721462130 in words is "sixteen billion, seven hundred twenty-one million, four hundred sixty-two thousand, one hundred thirty".