164412243345261 has 8 divisors (see below), whose sum is σ = 220668088199104. Its totient is φ = 108882280360800.

The previous prime is 164412243345197. The next prime is 164412243345307. The reversal of 164412243345261 is 162543342214461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164412243345261 - 2⁶ = 164412243345197 is a prime.

It is a super-3 number, since 3×164412243345261³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164412243345261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164412243325261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181470466816 + ... + 181470467721.

It is an arithmetic number, because the mean of its divisors is an integer number (27583511024888).

Almost surely, 2^{164412243345261} is an apocalyptic number.

It is an amenable number.

164412243345261 is a deficient number, since it is larger than the sum of its proper divisors (56255844853843).

164412243345261 is a wasteful number, since it uses less digits than its factorization.

164412243345261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362940934691.

The product of its digits is 3317760, while the sum is 48.

The spelling of 164412243345261 in words is "one hundred sixty-four trillion, four hundred twelve billion, two hundred forty-three million, three hundred forty-five thousand, two hundred sixty-one".