164387760537668 has 48 divisors (see below), whose sum is σ = 300479861001600. Its totient is φ = 78612120253440.

The previous prime is 164387760537667. The next prime is 164387760537673. The reversal of 164387760537668 is 866735067783461.

It is not an unprimeable number, because it can be changed into a prime (164387760537667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143340953 + ... + 144483231.

It is an arithmetic number, because the mean of its divisors is an integer number (6259997104200).

Almost surely, 2^{164387760537668} is an apocalyptic number.

It is an amenable number.

164387760537668 is a deficient number, since it is larger than the sum of its proper divisors (136092100463932).

164387760537668 is a wasteful number, since it uses less digits than its factorization.

164387760537668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158860 (or 1158858 counting only the distinct ones).

The product of its (nonzero) digits is 5120962560, while the sum is 77.

The spelling of 164387760537668 in words is "one hundred sixty-four trillion, three hundred eighty-seven billion, seven hundred sixty million, five hundred thirty-seven thousand, six hundred sixty-eight".