16466224646 has 4 divisors (see below), whose sum is σ = 24699336972. Its totient is φ = 8233112322.

The previous prime is 16466224613. The next prime is 16466224661. The reversal of 16466224646 is 64642266461.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×16466224646² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16466224646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4116556160 + ... + 4116556163.

It is an arithmetic number, because the mean of its divisors is an integer number (6174834243).

Almost surely, 2^16466224646 is an apocalyptic number.

16466224646 is a deficient number, since it is larger than the sum of its proper divisors (8233112326).

16466224646 is an equidigital number, since it uses as much as digits as its factorization.

16466224646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8233112325.

The product of its digits is 1990656, while the sum is 47.

The spelling of 16466224646 in words is "sixteen billion, four hundred sixty-six million, two hundred twenty-four thousand, six hundred forty-six".