164247148640 has 24 divisors (see below), whose sum is σ = 388033889040. Its totient is φ = 65698859392.

The previous prime is 164247148621. The next prime is 164247148661. The reversal of 164247148640 is 46841742461.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 513272180 + ... + 513272499.

It is an arithmetic number, because the mean of its divisors is an integer number (16168078710).

Almost surely, 2^164247148640 is an apocalyptic number.

164247148640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164247148640 is an abundant number, since it is smaller than the sum of its proper divisors (223786740400).

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

164247148640 is a wasteful number, since it uses less digits than its factorization.

164247148640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026544694 (or 1026544686 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 164247148640 in words is "one hundred sixty-four billion, two hundred forty-seven million, one hundred forty-eight thousand, six hundred forty".