16420534152 has 128 divisors (see below), whose sum is σ = 45826767360. Its totient is φ = 4861278720.

The previous prime is 16420534139. The next prime is 16420534157. The reversal of 16420534152 is 25143502461.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (16420534157) 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, 2058123 + ... + 2066085.

It is an arithmetic number, because the mean of its divisors is an integer number (358021620).

Almost surely, 2^16420534152 is an apocalyptic number.

16420534152 is a gapful number since it is divisible by the number (12) 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 16420534152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22913383680).

16420534152 is an abundant number, since it is smaller than the sum of its proper divisors (29406233208).

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

16420534152 is a wasteful number, since it uses less digits than its factorization.

16420534152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8163 (or 8159 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

It can be divided in two parts, 1642053 and 4152, that added together give a triangular number (1646205 = T₁₈₁₄).

The spelling of 16420534152 in words is "sixteen billion, four hundred twenty million, five hundred thirty-four thousand, one hundred fifty-two".