1572116667 has 16 divisors (see below), whose sum is σ = 2421228672. Its totient is φ = 896750720.

The previous prime is 1572116647. The next prime is 1572116683. The reversal of 1572116667 is 7666112751.

It is a cyclic number.

It is not a de Polignac number, because 1572116667 - 2⁶ = 1572116603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1572116627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1400613 + ... + 1401734.

It is an arithmetic number, because the mean of its divisors is an integer number (151326792).

Almost surely, 2^1572116667 is an apocalyptic number.

1572116667 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1572116667 is a deficient number, since it is larger than the sum of its proper divisors (849112005).

1572116667 is a wasteful number, since it uses less digits than its factorization.

1572116667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802378.

The product of its digits is 105840, while the sum is 42.

The square root of 1572116667 is about 39649.9264438158. The cubic root of 1572116667 is about 1162.7729604835.

It can be divided in two parts, 157211 and 6667, that added together give a triangular number (163878 = T₅₇₂).

The spelling of 1572116667 in words is "one billion, five hundred seventy-two million, one hundred sixteen thousand, six hundred sixty-seven".