164361732261 has 8 divisors (see below), whose sum is σ = 222419856864. Its totient is φ = 107939047920.

The previous prime is 164361732229. The next prime is 164361732277. The reversal of 164361732261 is 162237163461.

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

It is not a de Polignac number, because 164361732261 - 2⁵ = 164361732229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164361732761) 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, 408859830 + ... + 408860231.

It is an arithmetic number, because the mean of its divisors is an integer number (27802482108).

Almost surely, 2^164361732261 is an apocalyptic number.

It is an amenable number.

164361732261 is a deficient number, since it is larger than the sum of its proper divisors (58058124603).

164361732261 is an equidigital number, since it uses as much as digits as its factorization.

164361732261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817720131.

The product of its digits is 217728, while the sum is 42.

The spelling of 164361732261 in words is "one hundred sixty-four billion, three hundred sixty-one million, seven hundred thirty-two thousand, two hundred sixty-one".