1630065553 has 16 divisors (see below), whose sum is σ = 1793594880. Its totient is φ = 1474534656.

The previous prime is 1630065551. The next prime is 1630065557. The reversal of 1630065553 is 3555600361.

It is a cyclic number.

It is not a de Polignac number, because 1630065553 - 2¹ = 1630065551 is a prime.

It is a super-2 number, since 2×1630065553² = 5314227414154391618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1630065551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102526 + ... + 117352.

It is an arithmetic number, because the mean of its divisors is an integer number (112099680).

Almost surely, 2^1630065553 is an apocalyptic number.

It is an amenable number.

1630065553 is a deficient number, since it is larger than the sum of its proper divisors (163529327).

1630065553 is a wasteful number, since it uses less digits than its factorization.

1630065553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15096.

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 1630065553 is about 40374.0703050857. The cubic root of 1630065553 is about 1176.8876982699.

The spelling of 1630065553 in words is "one billion, six hundred thirty million, sixty-five thousand, five hundred fifty-three".