1620160279 has 4 divisors (see below), whose sum is σ = 1620344880. Its totient is φ = 1619975680.

The previous prime is 1620160277. The next prime is 1620160307. The reversal of 1620160279 is 9720610261.

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

It is a cyclic number.

It is not a de Polignac number, because 1620160279 - 2¹ = 1620160277 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 (1620160271) 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, 78442 + ... + 96919.

It is an arithmetic number, because the mean of its divisors is an integer number (405086220).

Almost surely, 2^1620160279 is an apocalyptic number.

1620160279 is a deficient number, since it is larger than the sum of its proper divisors (184601).

1620160279 is an equidigital number, since it uses as much as digits as its factorization.

1620160279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184600.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1620160279 is about 40251.2146276358. The cubic root of 1620160279 is about 1174.4990238555.

The spelling of 1620160279 in words is "one billion, six hundred twenty million, one hundred sixty thousand, two hundred seventy-nine".