164408742058690 has 16 divisors (see below), whose sum is σ = 296257755021120. Its totient is φ = 65691936975600.

The previous prime is 164408742058651. The next prime is 164408742058709. The reversal of 164408742058690 is 96850247804461.

It is a super-3 number, since 3×164408742058690³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 8944971336 + ... + 8944989715.

It is an arithmetic number, because the mean of its divisors is an integer number (18516109688820).

Almost surely, 2^{164408742058690} is an apocalyptic number.

164408742058690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164408742058690 is a deficient number, since it is larger than the sum of its proper divisors (131849012962430).

164408742058690 is a wasteful number, since it uses less digits than its factorization.

164408742058690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17889961977.

The product of its (nonzero) digits is 92897280, while the sum is 64.

The spelling of 164408742058690 in words is "one hundred sixty-four trillion, four hundred eight billion, seven hundred forty-two million, fifty-eight thousand, six hundred ninety".