169738837961 has 32 divisors (see below), whose sum is σ = 215237938176. Its totient is φ = 130007304000.

The previous prime is 169738837927. The next prime is 169738837979.

169738837961 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 169738837961 - 2²² = 169734643657 is a prime.

It is a super-2 number, since 2×169738837961² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 169738837891 and 169738837900.

It is not an unprimeable number, because it can be changed into a prime (169738837861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7367486 + ... + 7390488.

It is an arithmetic number, because the mean of its divisors is an integer number (6726185568).

Almost surely, 2^169738837961 is an apocalyptic number.

169738837961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

169738837961 is a deficient number, since it is larger than the sum of its proper divisors (45499100215).

169738837961 is a wasteful number, since it uses less digits than its factorization.

169738837961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24653.

The product of its digits is 82301184, while the sum is 68.

The spelling of 169738837961 in words is "one hundred sixty-nine billion, seven hundred thirty-eight million, eight hundred thirty-seven thousand, nine hundred sixty-one".