164987876138 has 16 divisors (see below), whose sum is σ = 251934478944. Its totient is φ = 81017156880.

The previous prime is 164987876101. The next prime is 164987876149. The reversal of 164987876138 is 831678789461.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1815545 + ... + 1904252.

It is an arithmetic number, because the mean of its divisors is an integer number (15745904934).

Almost surely, 2^164987876138 is an apocalyptic number.

164987876138 is a deficient number, since it is larger than the sum of its proper divisors (86946602806).

164987876138 is a wasteful number, since it uses less digits than its factorization.

164987876138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720197.

The product of its digits is 97542144, while the sum is 68.

The spelling of 164987876138 in words is "one hundred sixty-four billion, nine hundred eighty-seven million, eight hundred seventy-six thousand, one hundred thirty-eight".