20690170170034 has 8 divisors (see below), whose sum is σ = 31037138397468. Its totient is φ = 10344457370880.

The previous prime is 20690170170031. The next prime is 20690170170037. The reversal of 20690170170034 is 43007107109602.

It is an interprime number because it is at equal distance from previous prime (20690170170031) and next prime (20690170170037).

It can be written as a sum of positive squares in 2 ways, for example, as 20549584917225 + 140585252809 = 4533165^2 + 374947^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20690170170034² (a number of 27 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 313815867 + ... + 313881790.

Almost surely, 2^{20690170170034} is an apocalyptic number.

20690170170034 is a deficient number, since it is larger than the sum of its proper divisors (10346968227434).

20690170170034 is a wasteful number, since it uses less digits than its factorization.

20690170170034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627714140.

The product of its (nonzero) digits is 63504, while the sum is 40.

Adding to 20690170170034 its reverse (43007107109602), we get a palindrome (63697277279636).

The spelling of 20690170170034 in words is "twenty trillion, six hundred ninety billion, one hundred seventy million, one hundred seventy thousand, thirty-four".