16642151216 has 40 divisors (see below), whose sum is σ = 34120030464. Its totient is φ = 7847174720.

The previous prime is 16642151213. The next prime is 16642151221. The reversal of 16642151216 is 61215124661.

It is a super-2 number, since 2×16642151216² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16642151213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292346 + ... + 344601.

Almost surely, 2^16642151216 is an apocalyptic number.

16642151216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16642151216 is an abundant number, since it is smaller than the sum of its proper divisors (17477879248).

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

16642151216 is a wasteful number, since it uses less digits than its factorization.

16642151216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637049 (or 637043 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

Adding to 16642151216 its reverse (61215124661), we get a palindrome (77857275877).

The spelling of 16642151216 in words is "sixteen billion, six hundred forty-two million, one hundred fifty-one thousand, two hundred sixteen".