1667217488 has 10 divisors (see below), whose sum is σ = 3230233914. Its totient is φ = 833608736.

The previous prime is 1667217463. The next prime is 1667217547. The reversal of 1667217488 is 8847127661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 923673664 + 743543824 = 30392^2 + 27268^2 .

It is a super-2 number, since 2×1667217488² = 5559228304586060288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52100531 + ... + 52100562.

Almost surely, 2^1667217488 is an apocalyptic number.

It is an amenable number.

1667217488 is a deficient number, since it is larger than the sum of its proper divisors (1563016426).

1667217488 is a wasteful number, since it uses less digits than its factorization.

1667217488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104201101 (or 104201095 counting only the distinct ones).

The product of its digits is 903168, while the sum is 50.

The square root of 1667217488 is about 40831.5746451199. The cubic root of 1667217488 is about 1185.7617012911.

The spelling of 1667217488 in words is "one billion, six hundred sixty-seven million, two hundred seventeen thousand, four hundred eighty-eight".