16487185523 has 8 divisors (see below), whose sum is σ = 16538385600. Its totient is φ = 16436065408.

The previous prime is 16487185499. The next prime is 16487185567. The reversal of 16487185523 is 32558178461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16487185523 - 2¹⁸ = 16486923379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16487185573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407033 + ... + 445701.

It is an arithmetic number, because the mean of its divisors is an integer number (2067298200).

Almost surely, 2^16487185523 is an apocalyptic number.

16487185523 is a deficient number, since it is larger than the sum of its proper divisors (51200077).

16487185523 is an equidigital number, since it uses as much as digits as its factorization.

16487185523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39981.

The product of its digits is 1612800, while the sum is 50.

The spelling of 16487185523 in words is "sixteen billion, four hundred eighty-seven million, one hundred eighty-five thousand, five hundred twenty-three".