164840983988 has 12 divisors (see below), whose sum is σ = 289621013472. Its totient is φ = 82092123000.

The previous prime is 164840983949. The next prime is 164840984003. The reversal of 164840983988 is 889389048461.

It is a happy number.

It is a congruent number.

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, 82091120 + ... + 82093127.

It is an arithmetic number, because the mean of its divisors is an integer number (24135084456).

Almost surely, 2^164840983988 is an apocalyptic number.

It is an amenable number.

164840983988 is a deficient number, since it is larger than the sum of its proper divisors (124780029484).

164840983988 is a wasteful number, since it uses less digits than its factorization.

164840983988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164184502 (or 164184500 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 68.

The spelling of 164840983988 in words is "one hundred sixty-four billion, eight hundred forty million, nine hundred eighty-three thousand, nine hundred eighty-eight".