1072664167 has 4 divisors (see below), whose sum is σ = 1077348520. Its totient is φ = 1067979816.

The previous prime is 1072664161. The next prime is 1072664207. The reversal of 1072664167 is 7614662701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7614662701 = 32371 ⋅235231.

It is a cyclic number.

It is not a de Polignac number, because 1072664167 - 2⁷ = 1072664039 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 (1072664161) 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, 2341833 + ... + 2342290.

It is an arithmetic number, because the mean of its divisors is an integer number (269337130).

Almost surely, 2^1072664167 is an apocalyptic number.

1072664167 is a deficient number, since it is larger than the sum of its proper divisors (4684353).

1072664167 is an equidigital number, since it uses as much as digits as its factorization.

1072664167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4684352.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 1072664167 is about 32751.5521311586. The cubic root of 1072664167 is about 1023.6573073928.

The spelling of 1072664167 in words is "one billion, seventy-two million, six hundred sixty-four thousand, one hundred sixty-seven".