16642072104 has 64 divisors (see below), whose sum is σ = 47558547840. Its totient is φ = 4753900800.

The previous prime is 16642072103. The next prime is 16642072163. The reversal of 16642072104 is 40127024661.

It is not an unprimeable number, because it can be changed into a prime (16642072103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1346754 + ... + 1359054.

It is an arithmetic number, because the mean of its divisors is an integer number (743102310).

Almost surely, 2^16642072104 is an apocalyptic number.

16642072104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16642072104 is an abundant number, since it is smaller than the sum of its proper divisors (30916475736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16642072104 is a wasteful number, since it uses less digits than its factorization.

16642072104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20370 (or 20366 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

Adding to 16642072104 its reverse (40127024661), we get a palindrome (56769096765).

The spelling of 16642072104 in words is "sixteen billion, six hundred forty-two million, seventy-two thousand, one hundred four".