1611722202106 has 8 divisors (see below), whose sum is σ = 2418072410304. Its totient is φ = 805698065340.

The previous prime is 1611722202091. The next prime is 1611722202107. The reversal of 1611722202106 is 6012022271161.

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

It is a super-2 number, since 2×1611722202106² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1611722202107) 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, 81505500 + ... + 81525271.

It is an arithmetic number, because the mean of its divisors is an integer number (302259051288).

Almost surely, 2^{1611722202106} is an apocalyptic number.

1611722202106 is a deficient number, since it is larger than the sum of its proper divisors (806350208198).

1611722202106 is a wasteful number, since it uses less digits than its factorization.

1611722202106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163035716.

The product of its (nonzero) digits is 4032, while the sum is 31.

Adding to 1611722202106 its reverse (6012022271161), we get a palindrome (7623744473267).

The spelling of 1611722202106 in words is "one trillion, six hundred eleven billion, seven hundred twenty-two million, two hundred two thousand, one hundred six".