20115051355 has 64 divisors (see below), whose sum is σ = 29517447168. Its totient is φ = 12845629440.

The previous prime is 20115051331. The next prime is 20115051361. The reversal of 20115051355 is 55315051102.

It is not a de Polignac number, because 20115051355 - 2⁵ = 20115051323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29888299 + ... + 29888971.

It is an arithmetic number, because the mean of its divisors is an integer number (461210112).

Almost surely, 2^20115051355 is an apocalyptic number.

20115051355 is a deficient number, since it is larger than the sum of its proper divisors (9402395813).

20115051355 is a wasteful number, since it uses less digits than its factorization.

20115051355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 20115051355 in words is "twenty billion, one hundred fifteen million, fifty-one thousand, three hundred fifty-five".