15121052620404 has 12 divisors (see below), whose sum is σ = 35282456114304. Its totient is φ = 5040350873464.

The previous prime is 15121052620397. The next prime is 15121052620409. The reversal of 15121052620404 is 40402625012151.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15121052620409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630043859172 + ... + 630043859195.

It is an arithmetic number, because the mean of its divisors is an integer number (2940204676192).

Almost surely, 2^{15121052620404} is an apocalyptic number.

It is an amenable number.

15121052620404 is an abundant number, since it is smaller than the sum of its proper divisors (20161403493900).

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

15121052620404 is a wasteful number, since it uses less digits than its factorization.

15121052620404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260087718374 (or 1260087718372 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 15121052620404 its reverse (40402625012151), we get a palindrome (55523677632555).

The spelling of 15121052620404 in words is "fifteen trillion, one hundred twenty-one billion, fifty-two million, six hundred twenty thousand, four hundred four".