164242236343263 has 48 divisors (see below), whose sum is σ = 245342939663520. Its totient is φ = 97572890967552.

The previous prime is 164242236343253. The next prime is 164242236343307. The reversal of 164242236343263 is 362343632242461.

It is not a de Polignac number, because 164242236343263 - 2⁸ = 164242236343007 is a prime.

It is a super-2 number, since 2×164242236343263² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164242236343243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102078645 + ... + 103675137.

It is an arithmetic number, because the mean of its divisors is an integer number (5111311242990).

Almost surely, 2^{164242236343263} is an apocalyptic number.

164242236343263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

164242236343263 is a deficient number, since it is larger than the sum of its proper divisors (81100703320257).

164242236343263 is a wasteful number, since it uses less digits than its factorization.

164242236343263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603548 (or 1603535 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 51.

The spelling of 164242236343263 in words is "one hundred sixty-four trillion, two hundred forty-two billion, two hundred thirty-six million, three hundred forty-three thousand, two hundred sixty-three".