16464228723 has 10 divisors (see below), whose sum is σ = 24594712164. Its totient is φ = 10976152428.

The previous prime is 16464228709. The next prime is 16464228769. The reversal of 16464228723 is 32782246461.

It is a happy number.

It is not a de Polignac number, because 16464228723 - 2¹⁴ = 16464212339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16464228223) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 101630961 + ... + 101631122.

Almost surely, 2^16464228723 is an apocalyptic number.

16464228723 is a deficient number, since it is larger than the sum of its proper divisors (8130483441).

16464228723 is an equidigital number, since it uses as much as digits as its factorization.

16464228723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203262095 (or 203262086 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The spelling of 16464228723 in words is "sixteen billion, four hundred sixty-four million, two hundred twenty-eight thousand, seven hundred twenty-three".