164351220230652 has 192 divisors, whose sum is σ = 476917291597824. Its totient is φ = 42893116680960.

The previous prime is 164351220230633. The next prime is 164351220230669. The reversal of 164351220230652 is 256032022153461.

It is a super-2 number, since 2×164351220230652² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105672883 + ... + 107216885.

It is an arithmetic number, because the mean of its divisors is an integer number (2483944227072).

Almost surely, 2^{164351220230652} is an apocalyptic number.

164351220230652 is a gapful number since it is divisible by the number (12) 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 164351220230652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238458645798912).

164351220230652 is an abundant number, since it is smaller than the sum of its proper divisors (312566071367172).

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

164351220230652 is a wasteful number, since it uses less digits than its factorization.

164351220230652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545048 (or 1545046 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 164351220230652 in words is "one hundred sixty-four trillion, three hundred fifty-one billion, two hundred twenty million, two hundred thirty thousand, six hundred fifty-two".