168166645560730 has 16 divisors (see below), whose sum is σ = 302936631275520. Its totient is φ = 67214065054032.

The previous prime is 168166645560691. The next prime is 168166645560733. The reversal of 168166645560730 is 37065546661861.

It is a super-2 number, since 2×168166645560730² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168166645560733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6574132854 + ... + 6574158433.

It is an arithmetic number, because the mean of its divisors is an integer number (18933539454720).

Almost surely, 2^{168166645560730} is an apocalyptic number.

168166645560730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168166645560730 is a deficient number, since it is larger than the sum of its proper divisors (134769985714790).

168166645560730 is a wasteful number, since it uses less digits than its factorization.

168166645560730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13148292573.

The product of its (nonzero) digits is 130636800, while the sum is 64.

The spelling of 168166645560730 in words is "one hundred sixty-eight trillion, one hundred sixty-six billion, six hundred forty-five million, five hundred sixty thousand, seven hundred thirty".