1663372127 has 2 divisors, whose sum is σ = 1663372128. Its totient is φ = 1663372126.

The previous prime is 1663372103. The next prime is 1663372141. The reversal of 1663372127 is 7212733661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1663372127 - 2⁶ = 1663372063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1663372147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831686063 + 831686064.

It is an arithmetic number, because the mean of its divisors is an integer number (831686064).

Almost surely, 2^1663372127 is an apocalyptic number.

1663372127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1663372127 is an equidigital number, since it uses as much as digits as its factorization.

1663372127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 38.

The square root of 1663372127 is about 40784.4593809946. The cubic root of 1663372127 is about 1184.8493644387.

The spelling of 1663372127 in words is "one billion, six hundred sixty-three million, three hundred seventy-two thousand, one hundred twenty-seven".