16155552 has 96 divisors (see below), whose sum is σ = 50198400. Its totient is φ = 4451328.

The previous prime is 16155551. The next prime is 16155563. The reversal of 16155552 is 25555161.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×16155552² = 522003720849408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16155551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19074 + ... + 19902.

It is an arithmetic number, because the mean of its divisors is an integer number (522900).

Almost surely, 2^16155552 is an apocalyptic number.

16155552 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 16155552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25099200).

16155552 is an abundant number, since it is smaller than the sum of its proper divisors (34042848).

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

16155552 is a wasteful number, since it uses less digits than its factorization.

16155552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 870 counting only the distinct ones).

The product of its digits is 7500, while the sum is 30.

The square root of 16155552 is about 4019.3969696958. The cubic root of 16155552 is about 252.7981746917.

The spelling of 16155552 in words is "sixteen million, one hundred fifty-five thousand, five hundred fifty-two".