20211460155 has 24 divisors (see below), whose sum is σ = 35256351312. Its totient is φ = 10710782784.

The previous prime is 20211460117. The next prime is 20211460177. The reversal of 20211460155 is 55106411202.

20211460155 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 1 + 4 + 601 + 55 = 666.

It is not a de Polignac number, because 20211460155 - 2¹⁰ = 20211459131 is a prime.

It is a super-3 number, since 3×20211460155³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1423329 + ... + 1437458.

It is an arithmetic number, because the mean of its divisors is an integer number (1469014638).

Almost surely, 2^20211460155 is an apocalyptic number.

20211460155 is a deficient number, since it is larger than the sum of its proper divisors (15044891157).

20211460155 is a wasteful number, since it uses less digits than its factorization.

20211460155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860955 (or 2860952 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 20211460155 its reverse (55106411202), we get a palindrome (75317871357).

The spelling of 20211460155 in words is "twenty billion, two hundred eleven million, four hundred sixty thousand, one hundred fifty-five".