213641162423808 has 160 divisors (see below), whose sum is σ = 671443654379520. Its totient is φ = 59071289057280.

The previous prime is 213641162423771. The next prime is 213641162423827. The reversal of 213641162423808 is 808324261146312.

It is a super-2 number, since 2×213641162423808² (a number of 29 digits) contains 22 as substring.

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, 320148943 + ... + 320815566.

It is an arithmetic number, because the mean of its divisors is an integer number (4196522839872).

Almost surely, 2^{213641162423808} is an apocalyptic number.

213641162423808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213641162423808 is an abundant number, since it is smaller than the sum of its proper divisors (457802491955712).

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

213641162423808 is an equidigital number, since it uses as much as digits as its factorization.

213641162423808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640964568 (or 640964552 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 51.

The spelling of 213641162423808 in words is "two hundred thirteen trillion, six hundred forty-one billion, one hundred sixty-two million, four hundred twenty-three thousand, eight hundred eight".