168217552477306 has 16 divisors (see below), whose sum is σ = 253148347357416. Its totient is φ = 83835162867456.

The previous prime is 168217552477237. The next prime is 168217552477333. The reversal of 168217552477306 is 603774255712861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 145664598967281 + 22552953510025 = 12069159^2 + 4748995^2 .

It is a super-2 number, since 2×168217552477306² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97353541 + ... + 99066376.

Almost surely, 2^{168217552477306} is an apocalyptic number.

168217552477306 is a deficient number, since it is larger than the sum of its proper divisors (84930794880110).

168217552477306 is a wasteful number, since it uses less digits than its factorization.

168217552477306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196421313.

The product of its (nonzero) digits is 118540800, while the sum is 64.

The spelling of 168217552477306 in words is "one hundred sixty-eight trillion, two hundred seventeen billion, five hundred fifty-two million, four hundred seventy-seven thousand, three hundred six".