169165850412 has 96 divisors (see below), whose sum is σ = 430055861760. Its totient is φ = 51444771840.

The previous prime is 169165850387. The next prime is 169165850437. The reversal of 169165850412 is 214058561961.

It is an interprime number because it is at equal distance from previous prime (169165850387) and next prime (169165850437).

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, 6315087 + ... + 6341817.

It is an arithmetic number, because the mean of its divisors is an integer number (4479748560).

Almost surely, 2^169165850412 is an apocalyptic number.

169165850412 is a gapful number since it is divisible by the number (12) 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 169165850412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215027930880).

169165850412 is an abundant number, since it is smaller than the sum of its proper divisors (260890011348).

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

169165850412 is a wasteful number, since it uses less digits than its factorization.

169165850412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27223 (or 27221 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 169165850412 in words is "one hundred sixty-nine billion, one hundred sixty-five million, eight hundred fifty thousand, four hundred twelve".