16161555384630 has 48 divisors (see below), whose sum is σ = 42020265905280. Its totient is φ = 4309725343104.

The previous prime is 16161555384629. The next prime is 16161555384647. The reversal of 16161555384630 is 3648355516161.

16161555384630 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 1 + 5 + 553 + 84 + 6 + 3 + 0 = 666.

It is a super-2 number, since 2×16161555384630² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23185531 + ... + 23872409.

It is an arithmetic number, because the mean of its divisors is an integer number (875422206360).

Almost surely, 2^{16161555384630} is an apocalyptic number.

16161555384630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16161555384630 is an abundant number, since it is smaller than the sum of its proper divisors (25858710520650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16161555384630 is a wasteful number, since it uses less digits than its factorization.

16161555384630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948325 (or 948322 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 16161555384630 in words is "sixteen trillion, one hundred sixty-one billion, five hundred fifty-five million, three hundred eighty-four thousand, six hundred thirty".