169522416361 has 9 divisors (see below), whose sum is σ = 170460956631. Its totient is φ = 168589022184.

The previous prime is 169522416353. The next prime is 169522416407. The reversal of 169522416361 is 163614225961.

The square root of 169522416361 is 411731.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 26562806361 + 142959610000 = 162981^2 + 378100^2 .

It is not a de Polignac number, because 169522416361 - 2³ = 169522416353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169522416311) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 81933435 + ... + 81935503.

Almost surely, 2^169522416361 is an apocalyptic number.

169522416361 is the 411731-st square number.

169522416361 is the 205866-th centered octagonal number.

It is an amenable number.

169522416361 is a deficient number, since it is larger than the sum of its proper divisors (938540270).

169522416361 is an frugal number, since it uses more digits than its factorization.

169522416361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536 (or 2268 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The spelling of 169522416361 in words is "one hundred sixty-nine billion, five hundred twenty-two million, four hundred sixteen thousand, three hundred sixty-one".