169672160257 has 4 divisors (see below), whose sum is σ = 174257894356. Its totient is φ = 165086426160.

The previous prime is 169672160249. The next prime is 169672160309. The reversal of 169672160257 is 752061276961.

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

It can be written as a sum of positive squares in 2 ways, for example, as 115213403761 + 54458756496 = 339431^2 + 233364^2 .

It is a cyclic number.

It is not a de Polignac number, because 169672160257 - 2³ = 169672160249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169672160657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2292866994 + ... + 2292867067.

It is an arithmetic number, because the mean of its divisors is an integer number (43564473589).

Almost surely, 2^169672160257 is an apocalyptic number.

It is an amenable number.

169672160257 is a deficient number, since it is larger than the sum of its proper divisors (4585734099).

169672160257 is an equidigital number, since it uses as much as digits as its factorization.

169672160257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585734098.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 169672160257 in words is "one hundred sixty-nine billion, six hundred seventy-two million, one hundred sixty thousand, two hundred fifty-seven".