1670505606579 has 4 divisors (see below), whose sum is σ = 2227340808776. Its totient is φ = 1113670404384.

The previous prime is 1670505606557. The next prime is 1670505606599. The reversal of 1670505606579 is 9756065050761.

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

It is not a de Polignac number, because 1670505606579 - 2¹³ = 1670505598387 is a prime.

It is a super-2 number, since 2×1670505606579² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1670505606599) 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, 278417601094 + ... + 278417601099.

It is an arithmetic number, because the mean of its divisors is an integer number (556835202194).

Almost surely, 2^{1670505606579} is an apocalyptic number.

1670505606579 is a deficient number, since it is larger than the sum of its proper divisors (556835202197).

1670505606579 is an equidigital number, since it uses as much as digits as its factorization.

1670505606579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556835202196.

The product of its (nonzero) digits is 11907000, while the sum is 57.

The spelling of 1670505606579 in words is "one trillion, six hundred seventy billion, five hundred five million, six hundred six thousand, five hundred seventy-nine".