180354920101 has 2 divisors, whose sum is σ = 180354920102. Its totient is φ = 180354920100.

The previous prime is 180354920089. The next prime is 180354920267. The reversal of 180354920101 is 101029453081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100870395201 + 79484524900 = 317601^2 + 281930^2 .

It is a cyclic number.

It is not a de Polignac number, because 180354920101 - 2¹⁵ = 180354887333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180354920701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90177460050 + 90177460051.

It is an arithmetic number, because the mean of its divisors is an integer number (90177460051).

Almost surely, 2^180354920101 is an apocalyptic number.

It is an amenable number.

180354920101 is a deficient number, since it is larger than the sum of its proper divisors (1).

180354920101 is an equidigital number, since it uses as much as digits as its factorization.

180354920101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 180354920101 in words is "one hundred eighty billion, three hundred fifty-four million, nine hundred twenty thousand, one hundred one".