15906047436 has 120 divisors (see below), whose sum is σ = 42602717696. Its totient is φ = 5173217280.

The previous prime is 15906047407. The next prime is 15906047447. The reversal of 15906047436 is 63474060951.

15906047436 is a `hidden beast` number, since 1 + 5 + 9 + 0 + 604 + 7 + 4 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 15906047391 and 15906047400.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2506860 + ... + 2513196.

Almost surely, 2^15906047436 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 15906047436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21301358848).

15906047436 is an abundant number, since it is smaller than the sum of its proper divisors (26696670260).

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

15906047436 is a wasteful number, since it uses less digits than its factorization.

15906047436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6541 (or 6530 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 15906047436 in words is "fifteen billion, nine hundred six million, forty-seven thousand, four hundred thirty-six".