168173053611716 has 6 divisors (see below), whose sum is σ = 294302843820510. Its totient is φ = 84086526805856.

The previous prime is 168173053611707. The next prime is 168173053611721. The reversal of 168173053611716 is 617116350371861.

It can be written as a sum of positive squares in only one way, i.e., 166834163944900 + 1338889666816 = 12916430^2 + 1157104^2 .

It is a super-2 number, since 2×168173053611716² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21021631701461 + ... + 21021631701468.

It is an arithmetic number, because the mean of its divisors is an integer number (49050473970085).

Almost surely, 2^{168173053611716} is an apocalyptic number.

It is an amenable number.

168173053611716 is a deficient number, since it is larger than the sum of its proper divisors (126129790208794).

168173053611716 is a wasteful number, since it uses less digits than its factorization.

168173053611716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42043263402933 (or 42043263402931 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 56.

The spelling of 168173053611716 in words is "one hundred sixty-eight trillion, one hundred seventy-three billion, fifty-three million, six hundred eleven thousand, seven hundred sixteen".