1670365355 has 4 divisors (see below), whose sum is σ = 2004438432. Its totient is φ = 1336292280.

The previous prime is 1670365349. The next prime is 1670365357. The reversal of 1670365355 is 5535630761.

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

It is not a de Polignac number, because 1670365355 - 2¹⁶ = 1670299819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1670365357) 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, 167036531 + ... + 167036540.

It is an arithmetic number, because the mean of its divisors is an integer number (501109608).

Almost surely, 2^1670365355 is an apocalyptic number.

1670365355 is a deficient number, since it is larger than the sum of its proper divisors (334073077).

1670365355 is an equidigital number, since it uses as much as digits as its factorization.

1670365355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334073076.

The product of its (nonzero) digits is 283500, while the sum is 41.

The square root of 1670365355 is about 40870.1034375985. The cubic root of 1670365355 is about 1186.5075094886.

The spelling of 1670365355 in words is "one billion, six hundred seventy million, three hundred sixty-five thousand, three hundred fifty-five".