164444642 has 8 divisors (see below), whose sum is σ = 252403536. Its totient is φ = 80310132.

The previous prime is 164444633. The next prime is 164444653. The reversal of 164444642 is 246444461.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 955988 + ... + 956159.

It is an arithmetic number, because the mean of its divisors is an integer number (31550442).

Almost surely, 2^164444642 is an apocalyptic number.

164444642 is a deficient number, since it is larger than the sum of its proper divisors (87958894).

164444642 is a wasteful number, since it uses less digits than its factorization.

164444642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912192.

The product of its digits is 73728, while the sum is 35.

The square root of 164444642 is about 12823.5970772635. The cubic root of 164444642 is about 547.8646037176.

The spelling of 164444642 in words is "one hundred sixty-four million, four hundred forty-four thousand, six hundred forty-two".