16464420523 has 8 divisors (see below), whose sum is σ = 16628622192. Its totient is φ = 16300410336.

The previous prime is 16464420463. The next prime is 16464420547. The reversal of 16464420523 is 32502446461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16464420523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16464450523) 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, 128161 + ... + 222157.

It is an arithmetic number, because the mean of its divisors is an integer number (2078577774).

Almost surely, 2^16464420523 is an apocalyptic number.

16464420523 is a deficient number, since it is larger than the sum of its proper divisors (164201669).

16464420523 is a wasteful number, since it uses less digits than its factorization.

16464420523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95741.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 16464420523 its reverse (32502446461), we get a palindrome (48966866984).

The spelling of 16464420523 in words is "sixteen billion, four hundred sixty-four million, four hundred twenty thousand, five hundred twenty-three".