1605167215 has 16 divisors (see below), whose sum is σ = 2040513120. Its totient is φ = 1208787840.

The previous prime is 1605167203. The next prime is 1605167231. The reversal of 1605167215 is 5127615061.

It is not a de Polignac number, because 1605167215 - 2⁷ = 1605167087 is a prime.

It is a super-2 number, since 2×1605167215² = 5153123576221712450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38896 + ... + 68725.

It is an arithmetic number, because the mean of its divisors is an integer number (127532070).

Almost surely, 2^1605167215 is an apocalyptic number.

1605167215 is a deficient number, since it is larger than the sum of its proper divisors (435345905).

1605167215 is a wasteful number, since it uses less digits than its factorization.

1605167215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107802.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 1605167215 is about 40064.5381228837. The cubic root of 1605167215 is about 1170.8648279952.

The spelling of 1605167215 in words is "one billion, six hundred five million, one hundred sixty-seven thousand, two hundred fifteen".