164135020740 has 96 divisors (see below), whose sum is σ = 488177673984. Its totient is φ = 41062133760.

The previous prime is 164135020661. The next prime is 164135020747. The reversal of 164135020740 is 47020531461.

It is not an unprimeable number, because it can be changed into a prime (164135020747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58512 + ... + 575928.

It is an arithmetic number, because the mean of its divisors is an integer number (5085184104).

Almost surely, 2^164135020740 is an apocalyptic number.

164135020740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164135020740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244088836992).

164135020740 is an abundant number, since it is smaller than the sum of its proper divisors (324042653244).

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

164135020740 is a wasteful number, since it uses less digits than its factorization.

164135020740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517757 (or 517755 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 164135020740 in words is "one hundred sixty-four billion, one hundred thirty-five million, twenty thousand, seven hundred forty".