164240424131620 has 12 divisors (see below), whose sum is σ = 344904890676444. Its totient is φ = 65696169652640.

The previous prime is 164240424131617. The next prime is 164240424131647. The reversal of 164240424131620 is 26131424042461.

It can be written as a sum of positive squares in 2 ways, for example, as 69923579169024 + 94316844962596 = 8362032^2 + 9711686^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4106010603271 + ... + 4106010603310.

It is an arithmetic number, because the mean of its divisors is an integer number (28742074223037).

Almost surely, 2^{164240424131620} is an apocalyptic number.

164240424131620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164240424131620 is an abundant number, since it is smaller than the sum of its proper divisors (180664466544824).

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

164240424131620 is a wasteful number, since it uses less digits than its factorization.

164240424131620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212021206590 (or 8212021206588 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 164240424131620 in words is "one hundred sixty-four trillion, two hundred forty billion, four hundred twenty-four million, one hundred thirty-one thousand, six hundred twenty".