2620020555407 has 2 divisors, whose sum is σ = 2620020555408. Its totient is φ = 2620020555406.

The previous prime is 2620020555391. The next prime is 2620020555443. The reversal of 2620020555407 is 7045550200262.

It is a happy number.

2620020555407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2620020555407 - 2⁴ = 2620020555391 is a prime.

It is a super-4 number, since 4×2620020555407⁴ (a number of 51 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2620020555307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310010277703 + 1310010277704.

It is an arithmetic number, because the mean of its divisors is an integer number (1310010277704).

Almost surely, 2^{2620020555407} is an apocalyptic number.

2620020555407 is a deficient number, since it is larger than the sum of its proper divisors (1).

2620020555407 is an equidigital number, since it uses as much as digits as its factorization.

2620020555407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 38.

Adding to 2620020555407 its reverse (7045550200262), we get a palindrome (9665570755669).

The spelling of 2620020555407 in words is "two trillion, six hundred twenty billion, twenty million, five hundred fifty-five thousand, four hundred seven".