361005665101 has 4 divisors (see below), whose sum is σ = 361155028572. Its totient is φ = 360856301632.

The previous prime is 361005665099. The next prime is 361005665183. The reversal of 361005665101 is 101566500163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101566500163 = 631 ⋅160961173.

It can be written as a sum of positive squares in 2 ways, for example, as 315338402500 + 45667262601 = 561550^2 + 213699^2 .

It is a cyclic number.

It is not a de Polignac number, because 361005665101 - 2¹ = 361005665099 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 (361005665191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74678110 + ... + 74682943.

It is an arithmetic number, because the mean of its divisors is an integer number (90288757143).

Almost surely, 2^361005665101 is an apocalyptic number.

It is an amenable number.

361005665101 is a deficient number, since it is larger than the sum of its proper divisors (149363471).

361005665101 is a wasteful number, since it uses less digits than its factorization.

361005665101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149363470.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 361005665101 in words is "three hundred sixty-one billion, five million, six hundred sixty-five thousand, one hundred one".