15625006106 has 16 divisors (see below), whose sum is σ = 24306807240. Its totient is φ = 7524095040.

The previous prime is 15625006099. The next prime is 15625006109. The reversal of 15625006106 is 60160052651.

It can be written as a sum of positive squares in 4 ways, for example, as 15102197881 + 522808225 = 122891^2 + 22865^2 .

It is not an unprimeable number, because it can be changed into a prime (15625006109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316265 + ... + 362316.

Almost surely, 2^15625006106 is an apocalyptic number.

15625006106 is a deficient number, since it is larger than the sum of its proper divisors (8681801134).

15625006106 is a wasteful number, since it uses less digits than its factorization.

15625006106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679009.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 15625006106 its reverse (60160052651), we get a palindrome (75785058757).

The spelling of 15625006106 in words is "fifteen billion, six hundred twenty-five million, six thousand, one hundred six".