169481738880 has 256 divisors, whose sum is σ = 631841040000. Its totient is φ = 42816356352.

The previous prime is 169481738879. The next prime is 169481738971. The reversal of 169481738880 is 88837184961.

169481738880 is a `hidden beast` number, since 1 + 6 + 9 + 481 + 73 + 8 + 8 + 80 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70216 + ... + 586424.

Almost surely, 2^169481738880 is an apocalyptic number.

169481738880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169481738880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315920520000).

169481738880 is an abundant number, since it is smaller than the sum of its proper divisors (462359301120).

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

169481738880 is a wasteful number, since it uses less digits than its factorization.

169481738880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516256 (or 516238 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

The spelling of 169481738880 in words is "one hundred sixty-nine billion, four hundred eighty-one million, seven hundred thirty-eight thousand, eight hundred eighty".