3622201616405 has 8 divisors (see below), whose sum is σ = 4347399624792. Its totient is φ = 2897256169728.

The previous prime is 3622201616333. The next prime is 3622201616417. The reversal of 3622201616405 is 5046161022263.

It can be written as a sum of positive squares in 4 ways, for example, as 81696502276 + 3540505114129 = 285826^2 + 1881623^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3622201616405 - 2²² = 3622197422101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63108872 + ... + 63166241.

It is an arithmetic number, because the mean of its divisors is an integer number (543424953099).

Almost surely, 2^{3622201616405} is an apocalyptic number.

It is an amenable number.

3622201616405 is a deficient number, since it is larger than the sum of its proper divisors (725198008387).

3622201616405 is a wasteful number, since it uses less digits than its factorization.

3622201616405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126280855.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 3622201616405 its reverse (5046161022263), we get a palindrome (8668362638668).

The spelling of 3622201616405 in words is "three trillion, six hundred twenty-two billion, two hundred one million, six hundred sixteen thousand, four hundred five".