169544740456 has 192 divisors, whose sum is σ = 411945730560. Its totient is φ = 64774080000.

The previous prime is 169544740447. The next prime is 169544740457. The reversal of 169544740456 is 654047445961.

It is a junction number, because it is equal to n+sod(n) for n = 169544740397 and 169544740406.

It is not an unprimeable number, because it can be changed into a prime (169544740457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110740411 + ... + 110741941.

It is an arithmetic number, because the mean of its divisors is an integer number (2145550680).

Almost surely, 2^169544740456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169544740456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205972865280).

169544740456 is an abundant number, since it is smaller than the sum of its proper divisors (242400990104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169544740456 is a wasteful number, since it uses less digits than its factorization.

169544740456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 169544740456 in words is "one hundred sixty-nine billion, five hundred forty-four million, seven hundred forty thousand, four hundred fifty-six".