15506501160551 has 8 divisors (see below), whose sum is σ = 16323906174000. Its totient is φ = 14689223484480.

The previous prime is 15506501160499. The next prime is 15506501160583. The reversal of 15506501160551 is 15506110560551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15506501160551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15506501160499 and 15506501160508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15506501160151) 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, 31584326 + ... + 32071523.

It is an arithmetic number, because the mean of its divisors is an integer number (2040488271750).

Almost surely, 2^{15506501160551} is an apocalyptic number.

15506501160551 is a deficient number, since it is larger than the sum of its proper divisors (817405013449).

15506501160551 is a wasteful number, since it uses less digits than its factorization.

15506501160551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63668689.

The product of its (nonzero) digits is 112500, while the sum is 41.

The spelling of 15506501160551 in words is "fifteen trillion, five hundred six billion, five hundred one million, one hundred sixty thousand, five hundred fifty-one".