164242250106461 has 4 divisors (see below), whose sum is σ = 164242353181500. Its totient is φ = 164242147031424.

The previous prime is 164242250106427. The next prime is 164242250106593. The reversal of 164242250106461 is 164601052242461.

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 115100047083961 + 49142203022500 = 10728469^2 + 7010150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164242250106461 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 (164242250106401) 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, 49109246 + ... + 52346943.

It is an arithmetic number, because the mean of its divisors is an integer number (41060588295375).

Almost surely, 2^{164242250106461} is an apocalyptic number.

It is an amenable number.

164242250106461 is a deficient number, since it is larger than the sum of its proper divisors (103075039).

164242250106461 is a wasteful number, since it uses less digits than its factorization.

164242250106461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103075038.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 164242250106461 in words is "one hundred sixty-four trillion, two hundred forty-two billion, two hundred fifty million, one hundred six thousand, four hundred sixty-one".