1630338855 has 16 divisors (see below), whose sum is σ = 2609224800. Its totient is φ = 869286528.

The previous prime is 1630338847. The next prime is 1630338889. The reversal of 1630338855 is 5588330361.

It is not a de Polignac number, because 1630338855 - 2³ = 1630338847 is a prime.

It is a super-2 number, since 2×1630338855² = 5316009564245422050, 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 in 15 ways as a sum of consecutive naturals, for example, 56289 + ... + 80181.

It is an arithmetic number, because the mean of its divisors is an integer number (163076550).

Almost surely, 2^1630338855 is an apocalyptic number.

1630338855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1630338855 is a deficient number, since it is larger than the sum of its proper divisors (978885945).

1630338855 is a wasteful number, since it uses less digits than its factorization.

1630338855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28450.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 1630338855 is about 40377.4547860560. The cubic root of 1630338855 is about 1176.9534681785.

The spelling of 1630338855 in words is "one billion, six hundred thirty million, three hundred thirty-eight thousand, eight hundred fifty-five".