169916152961 has 4 divisors (see below), whose sum is σ = 178859108400. Its totient is φ = 160973197524.

The previous prime is 169916152937. The next prime is 169916152969. The reversal of 169916152961 is 169251619961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-169916152961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 169916152897 and 169916152906.

It is not an unprimeable number, because it can be changed into a prime (169916152969) 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, 4471477691 + ... + 4471477728.

It is an arithmetic number, because the mean of its divisors is an integer number (44714777100).

Almost surely, 2^169916152961 is an apocalyptic number.

It is an amenable number.

169916152961 is a deficient number, since it is larger than the sum of its proper divisors (8942955439).

169916152961 is an equidigital number, since it uses as much as digits as its factorization.

169916152961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8942955438.

The product of its digits is 1574640, while the sum is 56.

The spelling of 169916152961 in words is "one hundred sixty-nine billion, nine hundred sixteen million, one hundred fifty-two thousand, nine hundred sixty-one".