164464642 has 8 divisors (see below), whose sum is σ = 246834432. Its totient is φ = 82186500.

The previous prime is 164464633. The next prime is 164464669. The reversal of 164464642 is 246464461.

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, 18234 + ... + 25717.

It is an arithmetic number, because the mean of its divisors is an integer number (30854304).

Almost surely, 2^164464642 is an apocalyptic number.

164464642 is a deficient number, since it is larger than the sum of its proper divisors (82369790).

164464642 is a wasteful number, since it uses less digits than its factorization.

164464642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45824.

The product of its digits is 110592, while the sum is 37.

The square root of 164464642 is about 12824.3768659534. The cubic root of 164464642 is about 547.8868135177.

The spelling of 164464642 in words is "one hundred sixty-four million, four hundred sixty-four thousand, six hundred forty-two".