164279020020 has 24 divisors (see below), whose sum is σ = 459981256224. Its totient is φ = 43807738656.

The previous prime is 164279020019. The next prime is 164279020043. The reversal of 164279020020 is 20020972461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1368991774 + ... + 1368991893.

It is an arithmetic number, because the mean of its divisors is an integer number (19165885676).

Almost surely, 2^164279020020 is an apocalyptic number.

164279020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164279020020 is an abundant number, since it is smaller than the sum of its proper divisors (295702236204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164279020020 is a wasteful number, since it uses less digits than its factorization.

164279020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737983679 (or 2737983677 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

Adding to 164279020020 its reverse (20020972461), we get a palindrome (184299992481).

The spelling of 164279020020 in words is "one hundred sixty-four billion, two hundred seventy-nine million, twenty thousand, twenty".