1612172166202 has 8 divisors (see below), whose sum is σ = 2604278114676. Its totient is φ = 744079461312.

The previous prime is 1612172166181. The next prime is 1612172166203. The reversal of 1612172166202 is 2026612712161.

It can be written as a sum of positive squares in 2 ways, for example, as 1530067567681 + 82104598521 = 1236959^2 + 286539^2 .

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

It is a super-2 number, since 2×1612172166202² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1612172166203) 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, 31003310863 + ... + 31003310914.

Almost surely, 2^{1612172166202} is an apocalyptic number.

1612172166202 is a deficient number, since it is larger than the sum of its proper divisors (992105948474).

1612172166202 is a wasteful number, since it uses less digits than its factorization.

1612172166202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62006621792.

The product of its (nonzero) digits is 24192, while the sum is 37.

Adding to 1612172166202 its reverse (2026612712161), we get a palindrome (3638784878363).

The spelling of 1612172166202 in words is "one trillion, six hundred twelve billion, one hundred seventy-two million, one hundred sixty-six thousand, two hundred two".