20401836173158 has 8 divisors (see below), whose sum is σ = 33384822828840. Its totient is φ = 9273561896880.

The previous prime is 20401836173141. The next prime is 20401836173177. The reversal of 20401836173158 is 85137163810402.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463678094823 + ... + 463678094866.

It is an arithmetic number, because the mean of its divisors is an integer number (4173102853605).

Almost surely, 2^{20401836173158} is an apocalyptic number.

20401836173158 is a deficient number, since it is larger than the sum of its proper divisors (12982986655682).

20401836173158 is a wasteful number, since it uses less digits than its factorization.

20401836173158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927356189702.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 20401836173158 in words is "twenty trillion, four hundred one billion, eight hundred thirty-six million, one hundred seventy-three thousand, one hundred fifty-eight".