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164353202653 = 197178335609
BaseRepresentation
bin1001100100010000110…
…1101101100111011101
3120201020001112202101211
42121010031231213131
510143043404441103
6203300335304421
714605553113063
oct2310415554735
9521201482354
10164353202653
116377a109802
1227a2967b111
13126630c6193
147d51b2a033
15441dc3036d
hex264436d9dd

164353202653 has 4 divisors (see below), whose sum is σ = 164361557980. Its totient is φ = 164344847328.

The previous prime is 164353202647. The next prime is 164353202669. The reversal of 164353202653 is 356202353461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91338137284 + 73015065369 = 302222^2 + 270213^2 .

It is a cyclic number.

It is not a de Polignac number, because 164353202653 - 229 = 163816331741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164353202053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4148088 + ... + 4187521.

It is an arithmetic number, because the mean of its divisors is an integer number (41090389495).

Almost surely, 2164353202653 is an apocalyptic number.

It is an amenable number.

164353202653 is a deficient number, since it is larger than the sum of its proper divisors (8355327).

164353202653 is an equidigital number, since it uses as much as digits as its factorization.

164353202653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8355326.

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 164353202653 in words is "one hundred sixty-four billion, three hundred fifty-three million, two hundred two thousand, six hundred fifty-three".

Divisors: 1 19717 8335609 164353202653