2170172070207 has 16 divisors (see below), whose sum is σ = 3215092871680. Its totient is φ = 1446770968056.

The previous prime is 2170172070197. The next prime is 2170172070211. The reversal of 2170172070207 is 7020702710712.

2170172070207 is a `hidden beast` number, since 217 + 0 + 172 + 0 + 70 + 207 = 666.

It is not a de Polignac number, because 2170172070207 - 2²⁰ = 2170171021631 is a prime.

It is a super-2 number, since 2×2170172070207² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170172070247) 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, 6090858 + ... + 6437304.

It is an arithmetic number, because the mean of its divisors is an integer number (200943304480).

Almost surely, 2^{2170172070207} is an apocalyptic number.

2170172070207 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2170172070207 is a deficient number, since it is larger than the sum of its proper divisors (1044920801473).

2170172070207 is a wasteful number, since it uses less digits than its factorization.

2170172070207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578459 (or 578453 counting only the distinct ones).

The product of its (nonzero) digits is 19208, while the sum is 36.

Adding to 2170172070207 its reverse (7020702710712), we get a palindrome (9190874780919).

The spelling of 2170172070207 in words is "two trillion, one hundred seventy billion, one hundred seventy-two million, seventy thousand, two hundred seven".