1670455011 has 4 divisors (see below), whose sum is σ = 2227273352. Its totient is φ = 1113636672.

The previous prime is 1670454997. The next prime is 1670455019. The reversal of 1670455011 is 1105540761.

1670455011 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1670455011 - 2⁵ = 1670454979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1670455011.

It is not an unprimeable number, because it can be changed into a prime (1670455019) 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, 278409166 + ... + 278409171.

It is an arithmetic number, because the mean of its divisors is an integer number (556818338).

Almost surely, 2^1670455011 is an apocalyptic number.

1670455011 is a deficient number, since it is larger than the sum of its proper divisors (556818341).

1670455011 is an equidigital number, since it uses as much as digits as its factorization.

1670455011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556818340.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 1670455011 is about 40871.2002637554. The cubic root of 1670455011 is about 1186.5287375019.

Adding to 1670455011 its reverse (1105540761), we get a palindrome (2775995772).

The spelling of 1670455011 in words is "one billion, six hundred seventy million, four hundred fifty-five thousand, eleven".