16970034985 has 4 divisors (see below), whose sum is σ = 20364041988. Its totient is φ = 13576027984.

The previous prime is 16970034971. The next prime is 16970034989. The reversal of 16970034985 is 58943007961.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58943007961 = 43 ⋅1370767627.

It can be written as a sum of positive squares in 2 ways, for example, as 9245207104 + 7724827881 = 96152^2 + 87891^2 .

It is a cyclic number.

It is not a de Polignac number, because 16970034985 - 2⁵ = 16970034953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16970034989) 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, 1697003494 + ... + 1697003503.

It is an arithmetic number, because the mean of its divisors is an integer number (5091010497).

Almost surely, 2^16970034985 is an apocalyptic number.

It is an amenable number.

16970034985 is a deficient number, since it is larger than the sum of its proper divisors (3394007003).

16970034985 is an equidigital number, since it uses as much as digits as its factorization.

16970034985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394007002.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 16970034985 in words is "sixteen billion, nine hundred seventy million, thirty-four thousand, nine hundred eighty-five".