330401306542061 has 4 divisors (see below), whose sum is σ = 330453943366332. Its totient is φ = 330348669717792.

The previous prime is 330401306542009. The next prime is 330401306542091. The reversal of 330401306542061 is 160245603104033.

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 280155622622500 + 50245683919561 = 16737850^2 + 7088419^2 .

It is a cyclic number.

It is not a de Polignac number, because 330401306542061 - 2⁶ = 330401306541997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330401306542091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26318402720 + ... + 26318415273.

It is an arithmetic number, because the mean of its divisors is an integer number (82613485841583).

Almost surely, 2^{330401306542061} is an apocalyptic number.

It is an amenable number.

330401306542061 is a deficient number, since it is larger than the sum of its proper divisors (52636824271).

330401306542061 is an equidigital number, since it uses as much as digits as its factorization.

330401306542061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52636824270.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 330401306542061 its reverse (160245603104033), we get a palindrome (490646909646094).

The spelling of 330401306542061 in words is "three hundred thirty trillion, four hundred one billion, three hundred six million, five hundred forty-two thousand, sixty-one".