20015352344154 has 8 divisors (see below), whose sum is σ = 40030704688320. Its totient is φ = 6671784114716.

The previous prime is 20015352344149. The next prime is 20015352344173. The reversal of 20015352344154 is 45144325351002.

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

20015352344154 is an admirable number.

It is a super-2 number, since 2×20015352344154² (a number of 27 digits) contains 22 as substring.

It is a Curzon 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, 1667946028674 + ... + 1667946028685.

It is an arithmetic number, because the mean of its divisors is an integer number (5003838086040).

Almost surely, 2^{20015352344154} is an apocalyptic number.

20015352344154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20015352344154 is a wasteful number, since it uses less digits than its factorization.

20015352344154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335892057364.

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 20015352344154 its reverse (45144325351002), we get a palindrome (65159677695156).

The spelling of 20015352344154 in words is "twenty trillion, fifteen billion, three hundred fifty-two million, three hundred forty-four thousand, one hundred fifty-four".