20010015355 has 32 divisors (see below), whose sum is σ = 27027302400. Its totient is φ = 14095430400.

The previous prime is 20010015353. The next prime is 20010015371. The reversal of 20010015355 is 55351001002.

It is not a de Polignac number, because 20010015355 - 2¹ = 20010015353 is a prime.

It is a super-3 number, since 3×20010015355³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20010015353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281526 + ... + 345364.

It is an arithmetic number, because the mean of its divisors is an integer number (844603200).

Almost surely, 2^20010015355 is an apocalyptic number.

20010015355 is a deficient number, since it is larger than the sum of its proper divisors (7017287045).

20010015355 is a wasteful number, since it uses less digits than its factorization.

20010015355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64035.

The product of its (nonzero) digits is 750, while the sum is 22.

Adding to 20010015355 its reverse (55351001002), we get a palindrome (75361016357).

The spelling of 20010015355 in words is "twenty billion, ten million, fifteen thousand, three hundred fifty-five".