172616349898 has 8 divisors (see below), whose sum is σ = 265922485092. Its totient is φ = 83975521536.

The previous prime is 172616349869. The next prime is 172616349907. The reversal of 172616349898 is 898943616271.

It can be written as a sum of positive squares in 2 ways, for example, as 171845898849 + 770451049 = 414543^2 + 27757^2 .

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

It is a super-2 number, since 2×172616349898² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166326615 + ... + 1166326762.

Almost surely, 2^172616349898 is an apocalyptic number.

172616349898 is a deficient number, since it is larger than the sum of its proper divisors (93306135194).

172616349898 is a wasteful number, since it uses less digits than its factorization.

172616349898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332653416.

The product of its digits is 31352832, while the sum is 64.

The spelling of 172616349898 in words is "one hundred seventy-two billion, six hundred sixteen million, three hundred forty-nine thousand, eight hundred ninety-eight".