1055991167 has 8 divisors (see below), whose sum is σ = 1316560512. Its totient is φ = 822850200.

The previous prime is 1055991163. The next prime is 1055991197. The reversal of 1055991167 is 7611995501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1055991167 - 2² = 1055991163 is a prime.

It is a super-2 number, since 2×1055991167² = 2230234689564043778, 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 (1055991163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6857009 + ... + 6857162.

It is an arithmetic number, because the mean of its divisors is an integer number (164570064).

Almost surely, 2^1055991167 is an apocalyptic number.

1055991167 is a deficient number, since it is larger than the sum of its proper divisors (260569345).

1055991167 is a wasteful number, since it uses less digits than its factorization.

1055991167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13714189.

The product of its (nonzero) digits is 85050, while the sum is 44.

The square root of 1055991167 is about 32496.0177098672. The cubic root of 1055991167 is about 1018.3258346256.

The spelling of 1055991167 in words is "one billion, fifty-five million, nine hundred ninety-one thousand, one hundred sixty-seven".