2670161667 has 4 divisors (see below), whose sum is σ = 3560215560. Its totient is φ = 1780107776.

The previous prime is 2670161651. The next prime is 2670161671. The reversal of 2670161667 is 7661610762.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2670161667 - 2⁴ = 2670161651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2670161687) 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, 445026942 + ... + 445026947.

It is an arithmetic number, because the mean of its divisors is an integer number (890053890).

Almost surely, 2^2670161667 is an apocalyptic number.

2670161667 is a deficient number, since it is larger than the sum of its proper divisors (890053893).

2670161667 is an equidigital number, since it uses as much as digits as its factorization.

2670161667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890053892.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 2670161667 is about 51673.6070639548. The cubic root of 2670161667 is about 1387.3281086955.

The spelling of 2670161667 in words is "two billion, six hundred seventy million, one hundred sixty-one thousand, six hundred sixty-seven".