20690170170032 has 80 divisors (see below), whose sum is σ = 44437328662272. Its totient is φ = 9253994031360.

The previous prime is 20690170170031. The next prime is 20690170170037. The reversal of 20690170170032 is 23007107109602.

It is not an unprimeable number, because it can be changed into a prime (20690170170031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 788738 + ... + 6480929.

Almost surely, 2^{20690170170032} is an apocalyptic number.

20690170170032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20690170170032 is an abundant number, since it is smaller than the sum of its proper divisors (23747158492240).

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

20690170170032 is a wasteful number, since it uses less digits than its factorization.

20690170170032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7269946 (or 7269940 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 38.

Adding to 20690170170032 its reverse (23007107109602), we get a palindrome (43697277279634).

The spelling of 20690170170032 in words is "twenty trillion, six hundred ninety billion, one hundred seventy million, one hundred seventy thousand, thirty-two".