2130201556 has 12 divisors (see below), whose sum is σ = 4260403168. Its totient is φ = 912943512.

The previous prime is 2130201461. The next prime is 2130201613. The reversal of 2130201556 is 6551020312.

2130201556 is an admirable number.

It is a super-2 number, since 2×2130201556² = 9075517338369642272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2130201556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38039286 + ... + 38039341.

Almost surely, 2^2130201556 is an apocalyptic number.

It is an amenable number.

2130201556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2130201556 is a wasteful number, since it uses less digits than its factorization.

2130201556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76078638 (or 76078636 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2130201556 is about 46154.1065995216. The cubic root of 2130201556 is about 1286.6889339335.

Adding to 2130201556 its reverse (6551020312), we get a palindrome (8681221868).

The spelling of 2130201556 in words is "two billion, one hundred thirty million, two hundred one thousand, five hundred fifty-six".