1667162072 has 16 divisors (see below), whose sum is σ = 3172585560. Its totient is φ = 821139264.

The previous prime is 1667162071. The next prime is 1667162083. The reversal of 1667162072 is 2702617661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1667162071) 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, 1554653 + ... + 1555724.

Almost surely, 2^1667162072 is an apocalyptic number.

It is an amenable number.

1667162072 is a deficient number, since it is larger than the sum of its proper divisors (1505423488).

1667162072 is a wasteful number, since it uses less digits than its factorization.

1667162072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110450 (or 3110446 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1667162072 is about 40830.8960469887. The cubic root of 1667162072 is about 1185.7485634534.

The spelling of 1667162072 in words is "one billion, six hundred sixty-seven million, one hundred sixty-two thousand, seventy-two".