16161413133420 has 144 divisors (see below), whose sum is σ = 49511763860832. Its totient is φ = 4266743731200.

The previous prime is 16161413133403. The next prime is 16161413133457. The reversal of 16161413133420 is 2433131416161.

16161413133420 is a `hidden beast` number, since 1 + 6 + 1 + 61 + 41 + 3 + 133 + 420 = 666.

It is a super-2 number, since 2×16161413133420² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 417447984 + ... + 417486696.

It is an arithmetic number, because the mean of its divisors is an integer number (343831693478).

Almost surely, 2^{16161413133420} is an apocalyptic number.

16161413133420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16161413133420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24755881930416).

16161413133420 is an abundant number, since it is smaller than the sum of its proper divisors (33350350727412).

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

16161413133420 is a wasteful number, since it uses less digits than its factorization.

16161413133420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61792 (or 61787 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

Adding to 16161413133420 its reverse (2433131416161), we get a palindrome (18594544549581).

The spelling of 16161413133420 in words is "sixteen trillion, one hundred sixty-one billion, four hundred thirteen million, one hundred thirty-three thousand, four hundred twenty".