15225142104 has 96 divisors (see below), whose sum is σ = 43023150000. Its totient is φ = 4988783232.

The previous prime is 15225142087. The next prime is 15225142117. The reversal of 15225142104 is 40124152251.

It is a happy number.

15225142104 is a `hidden beast` number, since 15 + 225 + 1 + 421 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 741772 + ... + 762020.

Almost surely, 2^15225142104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15225142104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21511575000).

15225142104 is an abundant number, since it is smaller than the sum of its proper divisors (27798007896).

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

15225142104 is a wasteful number, since it uses less digits than its factorization.

15225142104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20382 (or 20313 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 15225142104 its reverse (40124152251), we get a palindrome (55349294355).

The spelling of 15225142104 in words is "fifteen billion, two hundred twenty-five million, one hundred forty-two thousand, one hundred four".