168678567145 has 12 divisors (see below), whose sum is σ = 222488424900. Its totient is φ = 122675321120.

The previous prime is 168678567107. The next prime is 168678567151. The reversal of 168678567145 is 541765876861.

It can be written as a sum of positive squares in 2 ways, for example, as 90318881961 + 78359685184 = 300531^2 + 279928^2 .

It is not a de Polignac number, because 168678567145 - 2¹⁵ = 168678534377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139403170 + ... + 139404379.

It is an arithmetic number, because the mean of its divisors is an integer number (18540702075).

Almost surely, 2^168678567145 is an apocalyptic number.

It is an amenable number.

168678567145 is a deficient number, since it is larger than the sum of its proper divisors (53809857755).

168678567145 is a wasteful number, since it uses less digits than its factorization.

168678567145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278807576 (or 278807565 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 64.

The spelling of 168678567145 in words is "one hundred sixty-eight billion, six hundred seventy-eight million, five hundred sixty-seven thousand, one hundred forty-five".