1067611161 has 4 divisors (see below), whose sum is σ = 1423481552. Its totient is φ = 711740772.

The previous prime is 1067611151. The next prime is 1067611163. The reversal of 1067611161 is 1611167601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1611167601 = 3 ⋅537055867.

It is not a de Polignac number, because 1067611161 - 2¹¹ = 1067609113 is a prime.

It is a super-2 number, since 2×1067611161² = 2279587182183535842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1067611163) 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, 177935191 + ... + 177935196.

It is an arithmetic number, because the mean of its divisors is an integer number (355870388).

Almost surely, 2^1067611161 is an apocalyptic number.

It is an amenable number.

1067611161 is a deficient number, since it is larger than the sum of its proper divisors (355870391).

1067611161 is an equidigital number, since it uses as much as digits as its factorization.

1067611161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355870390.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 1067611161 is about 32674.3195950581. The cubic root of 1067611161 is about 1022.0473937731.

Adding to 1067611161 its reverse (1611167601), we get a palindrome (2678778762).

The spelling of 1067611161 in words is "one billion, sixty-seven million, six hundred eleven thousand, one hundred sixty-one".