16536423648 has 48 divisors (see below), whose sum is σ = 43480490256. Its totient is φ = 5502950400.

The previous prime is 16536423637. The next prime is 16536423671. The reversal of 16536423648 is 84632463561.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×16536423648² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 16536423597 and 16536423606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85611 + ... + 201002.

It is an arithmetic number, because the mean of its divisors is an integer number (905843547).

Almost surely, 2^16536423648 is an apocalyptic number.

It is an amenable number.

16536423648 is an abundant number, since it is smaller than the sum of its proper divisors (26944066608).

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

16536423648 is a wasteful number, since it uses less digits than its factorization.

16536423648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287227 (or 287219 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 48.

The spelling of 16536423648 in words is "sixteen billion, five hundred thirty-six million, four hundred twenty-three thousand, six hundred forty-eight".