2164546677 has 4 divisors (see below), whose sum is σ = 2886062240. Its totient is φ = 1443031116.

The previous prime is 2164546673. The next prime is 2164546711. The reversal of 2164546677 is 7766454612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2164546677 - 2² = 2164546673 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164546673) 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, 360757777 + ... + 360757782.

It is an arithmetic number, because the mean of its divisors is an integer number (721515560).

Almost surely, 2^2164546677 is an apocalyptic number.

It is an amenable number.

2164546677 is a deficient number, since it is larger than the sum of its proper divisors (721515563).

2164546677 is an equidigital number, since it uses as much as digits as its factorization.

2164546677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721515562.

The product of its digits is 1693440, while the sum is 48.

The square root of 2164546677 is about 46524.6888974016. The cubic root of 2164546677 is about 1293.5671708410.

The spelling of 2164546677 in words is "two billion, one hundred sixty-four million, five hundred forty-six thousand, six hundred seventy-seven".