20041042155 has 8 divisors (see below), whose sum is σ = 32065667472. Its totient is φ = 10688555808.

The previous prime is 20041042067. The next prime is 20041042183. The reversal of 20041042155 is 55124014002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20041042155 - 2¹³ = 20041033963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668034724 + ... + 668034753.

It is an arithmetic number, because the mean of its divisors is an integer number (4008208434).

Almost surely, 2^20041042155 is an apocalyptic number.

20041042155 is a deficient number, since it is larger than the sum of its proper divisors (12024625317).

20041042155 is a wasteful number, since it uses less digits than its factorization.

20041042155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336069485.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 20041042155 its reverse (55124014002), we get a palindrome (75165056157).

The spelling of 20041042155 in words is "twenty billion, forty-one million, forty-two thousand, one hundred fifty-five".