2121415416 has 48 divisors (see below), whose sum is σ = 5750386200. Its totient is φ = 706537152.

The previous prime is 2121415409. The next prime is 2121415423. The reversal of 2121415416 is 6145141212.

2121415416 is a `hidden beast` number, since 21 + 214 + 15 + 416 = 666.

It is an interprime number because it is at equal distance from previous prime (2121415409) and next prime (2121415423).

It is a self number, because there is not a number n which added to its sum of digits gives 2121415416.

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 11 ways as a sum of consecutive naturals, for example, 77155 + ... + 100973.

Almost surely, 2^2121415416 is an apocalyptic number.

It is an amenable number.

2121415416 is an abundant number, since it is smaller than the sum of its proper divisors (3628970784).

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

2121415416 is a wasteful number, since it uses less digits than its factorization.

2121415416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25068 (or 25061 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 2121415416 is about 46058.8256037863. The cubic root of 2121415416 is about 1284.9174884818.

Adding to 2121415416 its reverse (6145141212), we get a palindrome (8266556628).

The spelling of 2121415416 in words is "two billion, one hundred twenty-one million, four hundred fifteen thousand, four hundred sixteen".