16485019236 has 135 divisors (see below), whose sum is σ = 50180275299. Its totient is φ = 4705383312.

The previous prime is 16485019223. The next prime is 16485019249. The reversal of 16485019236 is 63291058461.

The square root of 16485019236 is 128394.

It is a perfect power (a square), and thus also a powerful number.

16485019236 is a `hidden beast` number, since 16 + 48 + 501 + 92 + 3 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (16485019223) and next prime (16485019249).

It is a super-2 number, since 2×16485019236² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16485019191 and 16485019200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 16177135 + ... + 16178153.

Almost surely, 2^16485019236 is an apocalyptic number.

16485019236 is the 128394-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16485019236

16485019236 is an abundant number, since it is smaller than the sum of its proper divisors (33695256063).

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

16485019236 is an equidigital number, since it uses as much as digits as its factorization.

16485019236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 16485019236 in words is "sixteen billion, four hundred eighty-five million, nineteen thousand, two hundred thirty-six".