16178906052 has 36 divisors (see below), whose sum is σ = 43302367836. Its totient is φ = 5075735040.

The previous prime is 16178906017. The next prime is 16178906071. The reversal of 16178906052 is 25060987161.

It can be written as a sum of positive squares in 2 ways, for example, as 12352988736 + 3825917316 = 111144^2 + 61854^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 16178905989 and 16178906007.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13217449 + ... + 13218672.

It is an arithmetic number, because the mean of its divisors is an integer number (1202843551).

Almost surely, 2^16178906052 is an apocalyptic number.

16178906052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16178906052 is an abundant number, since it is smaller than the sum of its proper divisors (27123461784).

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

16178906052 is a wasteful number, since it uses less digits than its factorization.

16178906052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26436148 (or 26436143 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 16178906052 in words is "sixteen billion, one hundred seventy-eight million, nine hundred six thousand, fifty-two".