16642203164 has 24 divisors (see below), whose sum is σ = 29845565568. Its totient is φ = 8117310960.

The previous prime is 16642203161. The next prime is 16642203181. The reversal of 16642203164 is 46130224661.

It is a super-2 number, since 2×16642203164² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16642203161) 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, 273842 + ... + 329049.

It is an arithmetic number, because the mean of its divisors is an integer number (1243565232).

Almost surely, 2^16642203164 is an apocalyptic number.

It is an amenable number.

16642203164 is a deficient number, since it is larger than the sum of its proper divisors (13203362404).

16642203164 is a wasteful number, since it uses less digits than its factorization.

16642203164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603065 (or 603063 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 16642203164 in words is "sixteen billion, six hundred forty-two million, two hundred three thousand, one hundred sixty-four".