20620213415 has 16 divisors (see below), whose sum is σ = 25357062528. Its totient is φ = 16090031616.

The previous prime is 20620213409. The next prime is 20620213457. The reversal of 20620213415 is 51431202602.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20620213415 - 2³⁰ = 19546471591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80882 + ... + 218591.

It is an arithmetic number, because the mean of its divisors is an integer number (1584816408).

Almost surely, 2^20620213415 is an apocalyptic number.

20620213415 is a deficient number, since it is larger than the sum of its proper divisors (4736849113).

20620213415 is a wasteful number, since it uses less digits than its factorization.

20620213415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299818.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 20620213415 in words is "twenty billion, six hundred twenty million, two hundred thirteen thousand, four hundred fifteen".