2215556464 has 30 divisors (see below), whose sum is σ = 4718361200. Its totient is φ = 1007070240.

The previous prime is 2215556461. The next prime is 2215556521. The reversal of 2215556464 is 4646555122.

It is a happy number.

It is a super-3 number, since 3×2215556464³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215556461) 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 5 ways as a sum of consecutive naturals, for example, 570264 + ... + 574135.

Almost surely, 2^2215556464 is an apocalyptic number.

It is an amenable number.

2215556464 is an abundant number, since it is smaller than the sum of its proper divisors (2502804736).

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

2215556464 is a wasteful number, since it uses less digits than its factorization.

2215556464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144429 (or 1144412 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The square root of 2215556464 is about 47069.6979382702. The cubic root of 2215556464 is about 1303.6497955526.

The spelling of 2215556464 in words is "two billion, two hundred fifteen million, five hundred fifty-six thousand, four hundred sixty-four".