1061645167 has 6 divisors (see below), whose sum is σ = 1166932424. Its totient is φ = 965131860.

The previous prime is 1061645149. The next prime is 1061645231. The reversal of 1061645167 is 7615461601.

It is not a de Polignac number, because 1061645167 - 2¹¹ = 1061643119 is a prime.

It is a super-2 number, since 2×1061645167² = 2254180921228915778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061645567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4386843 + ... + 4387084.

Almost surely, 2^1061645167 is an apocalyptic number.

1061645167 is a deficient number, since it is larger than the sum of its proper divisors (105287257).

1061645167 is an equidigital number, since it uses as much as digits as its factorization.

1061645167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8773949 (or 8773938 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 1061645167 is about 32582.8968478863. The cubic root of 1061645167 is about 1020.1400445287.

The spelling of 1061645167 in words is "one billion, sixty-one million, six hundred forty-five thousand, one hundred sixty-seven".