1660051633 has 2 divisors, whose sum is σ = 1660051634. Its totient is φ = 1660051632.

The previous prime is 1660051577. The next prime is 1660051651. The reversal of 1660051633 is 3361500661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1647710464 + 12341169 = 40592^2 + 3513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1660051633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1660051595 and 1660051604.

It is not a weakly prime, because it can be changed into another prime (1660051663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830025816 + 830025817.

It is an arithmetic number, because the mean of its divisors is an integer number (830025817).

Almost surely, 2^1660051633 is an apocalyptic number.

It is an amenable number.

1660051633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660051633 is an equidigital number, since it uses as much as digits as its factorization.

1660051633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 1660051633 is about 40743.7312110710. The cubic root of 1660051633 is about 1184.0604237124.

The spelling of 1660051633 in words is "one billion, six hundred sixty million, fifty-one thousand, six hundred thirty-three".