164278914164 has 24 divisors (see below), whose sum is σ = 291835390560. Its totient is φ = 80897848416.

The previous prime is 164278914143. The next prime is 164278914169. The reversal of 164278914164 is 461419872461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164278914169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1395734 + ... + 1508850.

It is an arithmetic number, because the mean of its divisors is an integer number (12159807940).

Almost surely, 2^164278914164 is an apocalyptic number.

It is an amenable number.

164278914164 is a deficient number, since it is larger than the sum of its proper divisors (127556476396).

164278914164 is a wasteful number, since it uses less digits than its factorization.

164278914164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118607 (or 118605 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 53.

The spelling of 164278914164 in words is "one hundred sixty-four billion, two hundred seventy-eight million, nine hundred fourteen thousand, one hundred sixty-four".