6416620415 has 4 divisors (see below), whose sum is σ = 7699944504. Its totient is φ = 5133296328.

The previous prime is 6416620411. The next prime is 6416620423. The reversal of 6416620415 is 5140266146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5140266146 = 2 ⋅2570133073.

It is a cyclic number.

It is not a de Polignac number, because 6416620415 - 2² = 6416620411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6416620411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641662037 + ... + 641662046.

It is an arithmetic number, because the mean of its divisors is an integer number (1924986126).

Almost surely, 2^6416620415 is an apocalyptic number.

6416620415 is a deficient number, since it is larger than the sum of its proper divisors (1283324089).

6416620415 is a wasteful number, since it uses less digits than its factorization.

6416620415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283324088.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 6416620415 is about 80103.8102402127. The cubic root of 6416620415 is about 1858.2413344541.

The spelling of 6416620415 in words is "six billion, four hundred sixteen million, six hundred twenty thousand, four hundred fifteen".