164010651640 has 64 divisors (see below), whose sum is σ = 423759600000. Its totient is φ = 56501274240.

The previous prime is 164010651587. The next prime is 164010651661. The reversal of 164010651640 is 46156010461.

It is a junction number, because it is equal to n+sod(n) for n = 164010651596 and 164010651605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9800890 + ... + 9817609.

It is an arithmetic number, because the mean of its divisors is an integer number (6621243750).

Almost surely, 2^164010651640 is an apocalyptic number.

164010651640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164010651640 is an abundant number, since it is smaller than the sum of its proper divisors (259748948360).

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

164010651640 is a wasteful number, since it uses less digits than its factorization.

164010651640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19618540 (or 19618536 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 164010651640 in words is "one hundred sixty-four billion, ten million, six hundred fifty-one thousand, six hundred forty".