20514614422155 has 64 divisors (see below), whose sum is σ = 39183730311168. Its totient is φ = 8961126261120.

The previous prime is 20514614422153. The next prime is 20514614422187. The reversal of 20514614422155 is 55122441641502.

It is not a de Polignac number, because 20514614422155 - 2¹ = 20514614422153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20514614422153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2029219 + ... + 6719148.

It is an arithmetic number, because the mean of its divisors is an integer number (612245786112).

Almost surely, 2^{20514614422155} is an apocalyptic number.

20514614422155 is a deficient number, since it is larger than the sum of its proper divisors (18669115889013).

20514614422155 is a wasteful number, since it uses less digits than its factorization.

20514614422155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8749376.

The product of its (nonzero) digits is 384000, while the sum is 42.

The spelling of 20514614422155 in words is "twenty trillion, five hundred fourteen billion, six hundred fourteen million, four hundred twenty-two thousand, one hundred fifty-five".