16642288474 has 32 divisors (see below), whose sum is σ = 29187164160. Its totient is φ = 6969478128.

The previous prime is 16642288469. The next prime is 16642288477. The reversal of 16642288474 is 47488224661.

It is not an unprimeable number, because it can be changed into a prime (16642288477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77619 + ... + 198265.

It is an arithmetic number, because the mean of its divisors is an integer number (912098880).

Almost surely, 2^16642288474 is an apocalyptic number.

16642288474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16642288474 is a deficient number, since it is larger than the sum of its proper divisors (12544875686).

16642288474 is a wasteful number, since it uses less digits than its factorization.

16642288474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120882.

The product of its digits is 4128768, while the sum is 52.

The spelling of 16642288474 in words is "sixteen billion, six hundred forty-two million, two hundred eighty-eight thousand, four hundred seventy-four".