16506423534 has 32 divisors (see below), whose sum is σ = 33249981600. Its totient is φ = 5462653952.

The previous prime is 16506423529. The next prime is 16506423539. The reversal of 16506423534 is 43532460561.

It is an interprime number because it is at equal distance from previous prime (16506423529) and next prime (16506423539).

It is a junction number, because it is equal to n+sod(n) for n = 16506423492 and 16506423501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506423539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3424294 + ... + 3429110.

It is an arithmetic number, because the mean of its divisors is an integer number (1039061925).

Almost surely, 2^16506423534 is an apocalyptic number.

16506423534 is an abundant number, since it is smaller than the sum of its proper divisors (16743558066).

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

16506423534 is a wasteful number, since it uses less digits than its factorization.

16506423534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8804.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 16506423534 in words is "sixteen billion, five hundred six million, four hundred twenty-three thousand, five hundred thirty-four".