1670305855 has 16 divisors (see below), whose sum is σ = 2015997984. Its totient is φ = 1328512000.

The previous prime is 1670305853. The next prime is 1670305873. The reversal of 1670305855 is 5585030761.

It is not a de Polignac number, because 1670305855 - 2¹ = 1670305853 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 (1670305853) 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, 1074759 + ... + 1076311.

It is an arithmetic number, because the mean of its divisors is an integer number (125999874).

Almost surely, 2^1670305855 is an apocalyptic number.

1670305855 is a deficient number, since it is larger than the sum of its proper divisors (345692129).

1670305855 is a wasteful number, since it uses less digits than its factorization.

1670305855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666.

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 1670305855 is about 40869.3755151703. The cubic root of 1670305855 is about 1186.4934211466.

The spelling of 1670305855 in words is "one billion, six hundred seventy million, three hundred five thousand, eight hundred fifty-five".