164719891996 has 48 divisors (see below), whose sum is σ = 322283082240. Its totient is φ = 73034133120.

The previous prime is 164719891957. The next prime is 164719892011. The reversal of 164719891996 is 699198917461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3040 + ... + 573976.

It is an arithmetic number, because the mean of its divisors is an integer number (6714230880).

Almost surely, 2^164719891996 is an apocalyptic number.

It is an amenable number.

164719891996 is a deficient number, since it is larger than the sum of its proper divisors (157563190244).

164719891996 is a wasteful number, since it uses less digits than its factorization.

164719891996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571114 (or 571112 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 70.

The spelling of 164719891996 in words is "one hundred sixty-four billion, seven hundred nineteen million, eight hundred ninety-one thousand, nine hundred ninety-six".