16642010122 has 8 divisors (see below), whose sum is σ = 25823808900. Its totient is φ = 8034073824.

The previous prime is 16642010081. The next prime is 16642010159. The reversal of 16642010122 is 22101024661.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14604480801 + 2037529321 = 120849^2 + 45139^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143465547 + ... + 143465662.

Almost surely, 2^16642010122 is an apocalyptic number.

16642010122 is a deficient number, since it is larger than the sum of its proper divisors (9181798778).

16642010122 is a wasteful number, since it uses less digits than its factorization.

16642010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286931240.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 16642010122 its reverse (22101024661), we get a palindrome (38743034783).

The spelling of 16642010122 in words is "sixteen billion, six hundred forty-two million, ten thousand, one hundred twenty-two".