164555244446 has 16 divisors (see below), whose sum is σ = 257872515840. Its totient is φ = 78653920800.

The previous prime is 164555244433. The next prime is 164555244461. The reversal of 164555244446 is 644442555461.

It is a junction number, because it is equal to n+sod(n) for n = 164555244394 and 164555244403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14039486 + ... + 14051201.

It is an arithmetic number, because the mean of its divisors is an integer number (16117032240).

Almost surely, 2^164555244446 is an apocalyptic number.

164555244446 is a deficient number, since it is larger than the sum of its proper divisors (93317271394).

164555244446 is a wasteful number, since it uses less digits than its factorization.

164555244446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28090819.

The product of its digits is 9216000, while the sum is 50.

The spelling of 164555244446 in words is "one hundred sixty-four billion, five hundred fifty-five million, two hundred forty-four thousand, four hundred forty-six".