16461721362030 has 128 divisors (see below), whose sum is σ = 45501500943360. Its totient is φ = 3733572510720.

The previous prime is 16461721362017. The next prime is 16461721362109. The reversal of 16461721362030 is 3026312716461.

It is a super-2 number, since 2×16461721362030² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 333093882 + ... + 333143298.

It is an arithmetic number, because the mean of its divisors is an integer number (355480476120).

Almost surely, 2^{16461721362030} is an apocalyptic number.

16461721362030 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 16461721362030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22750750471680).

16461721362030 is an abundant number, since it is smaller than the sum of its proper divisors (29039779581330).

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

16461721362030 is a wasteful number, since it uses less digits than its factorization.

16461721362030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61674.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 16461721362030 in words is "sixteen trillion, four hundred sixty-one billion, seven hundred twenty-one million, three hundred sixty-two thousand, thirty".