164744646773740 has 24 divisors (see below), whose sum is σ = 377415008973072. Its totient is φ = 59907144281280.

The previous prime is 164744646773737. The next prime is 164744646773771. The reversal of 164744646773740 is 47377646447461.

It is a super-2 number, since 2×164744646773740² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164744646773740.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374419651539 + ... + 374419651978.

It is an arithmetic number, because the mean of its divisors is an integer number (15725625373878).

Almost surely, 2^{164744646773740} is an apocalyptic number.

164744646773740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164744646773740 is an abundant number, since it is smaller than the sum of its proper divisors (212670362199332).

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

164744646773740 is a wasteful number, since it uses less digits than its factorization.

164744646773740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748839303537 (or 748839303535 counting only the distinct ones).

The product of its (nonzero) digits is 1593188352, while the sum is 70.

The spelling of 164744646773740 in words is "one hundred sixty-four trillion, seven hundred forty-four billion, six hundred forty-six million, seven hundred seventy-three thousand, seven hundred forty".