360061607821 has 4 divisors (see below), whose sum is σ = 365132898144. Its totient is φ = 354990317500.

The previous prime is 360061607683. The next prime is 360061607869. The reversal of 360061607821 is 128706160063.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 360061607821 - 2¹¹ = 360061605773 is a prime.

It is a super-2 number, since 2×360061607821² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (360061607221) 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, 2535645055 + ... + 2535645196.

It is an arithmetic number, because the mean of its divisors is an integer number (91283224536).

Almost surely, 2^360061607821 is an apocalyptic number.

It is an amenable number.

360061607821 is a deficient number, since it is larger than the sum of its proper divisors (5071290323).

360061607821 is an equidigital number, since it uses as much as digits as its factorization.

360061607821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071290322.

The product of its (nonzero) digits is 72576, while the sum is 40.

Adding to 360061607821 its reverse (128706160063), we get a palindrome (488767767884).

The spelling of 360061607821 in words is "three hundred sixty billion, sixty-one million, six hundred seven thousand, eight hundred twenty-one".