20151544053404 has 12 divisors (see below), whose sum is σ = 35265330151800. Its totient is φ = 10075735438608.

The previous prime is 20151544053397. The next prime is 20151544053419. The reversal of 20151544053404 is 40435044515102.

It is a super-2 number, since 2×20151544053404² (a number of 27 digits) contains 22 as substring.

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, 7888559 + ... + 10125830.

It is an arithmetic number, because the mean of its divisors is an integer number (2938777512650).

Almost surely, 2^{20151544053404} is an apocalyptic number.

It is an amenable number.

20151544053404 is a deficient number, since it is larger than the sum of its proper divisors (15113786098396).

20151544053404 is a wasteful number, since it uses less digits than its factorization.

20151544053404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18294052 (or 18294050 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 20151544053404 its reverse (40435044515102), we get a palindrome (60586588568506).

The spelling of 20151544053404 in words is "twenty trillion, one hundred fifty-one billion, five hundred forty-four million, fifty-three thousand, four hundred four".