67145227017774 has 16 divisors (see below), whose sum is σ = 137147697739008. Its totient is φ = 21905535055352.

The previous prime is 67145227017769. The next prime is 67145227017833. The reversal of 67145227017774 is 47771072254176.

It is a super-2 number, since 2×67145227017774² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119051820672 + ... + 119051821235.

It is an arithmetic number, because the mean of its divisors is an integer number (8571731108688).

Almost surely, 2^{67145227017774} is an apocalyptic number.

67145227017774 is an abundant number, since it is smaller than the sum of its proper divisors (70002470721234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67145227017774 is a wasteful number, since it uses less digits than its factorization.

67145227017774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238103641959.

The product of its (nonzero) digits is 32269440, while the sum is 60.

The spelling of 67145227017774 in words is "sixty-seven trillion, one hundred forty-five billion, two hundred twenty-seven million, seventeen thousand, seven hundred seventy-four".