1945066156167 has 4 divisors (see below), whose sum is σ = 2593421541560. Its totient is φ = 1296710770776.

The previous prime is 1945066156157. The next prime is 1945066156193. The reversal of 1945066156167 is 7616516605491.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1945066156167 - 2⁴ = 1945066156151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945066156157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324177692692 + ... + 324177692697.

It is an arithmetic number, because the mean of its divisors is an integer number (648355385390).

Almost surely, 2^{1945066156167} is an apocalyptic number.

1945066156167 is a deficient number, since it is larger than the sum of its proper divisors (648355385393).

1945066156167 is an equidigital number, since it uses as much as digits as its factorization.

1945066156167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648355385392.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 1945066156167 in words is "one trillion, nine hundred forty-five billion, sixty-six million, one hundred fifty-six thousand, one hundred sixty-seven".