20155006634154 has 128 divisors (see below), whose sum is σ = 46400290560000. Its totient is φ = 5717291247360.

The previous prime is 20155006634123. The next prime is 20155006634291. The reversal of 20155006634154 is 45143660055102.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 63 ways as a sum of consecutive naturals, for example, 6783911889 + ... + 6783914859.

It is an arithmetic number, because the mean of its divisors is an integer number (362502270000).

Almost surely, 2^{20155006634154} is an apocalyptic number.

20155006634154 is an abundant number, since it is smaller than the sum of its proper divisors (26245283925846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20155006634154 is a wasteful number, since it uses less digits than its factorization.

20155006634154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148.

The product of its (nonzero) digits is 432000, while the sum is 42.

Adding to 20155006634154 its reverse (45143660055102), we get a palindrome (65298666689256).

The spelling of 20155006634154 in words is "twenty trillion, one hundred fifty-five billion, six million, six hundred thirty-four thousand, one hundred fifty-four".