15691284055 has 8 divisors (see below), whose sum is σ = 19023660432. Its totient is φ = 12423614208.

The previous prime is 15691284047. The next prime is 15691284061. The reversal of 15691284055 is 55048219651.

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

It is a cyclic number.

It is not a de Polignac number, because 15691284055 - 2³ = 15691284047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15691283996 and 15691284014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16176097 + ... + 16177066.

It is an arithmetic number, because the mean of its divisors is an integer number (2377957554).

Almost surely, 2^15691284055 is an apocalyptic number.

15691284055 is a deficient number, since it is larger than the sum of its proper divisors (3332376377).

15691284055 is an equidigital number, since it uses as much as digits as its factorization.

15691284055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32353265.

The product of its (nonzero) digits is 432000, while the sum is 46.

The spelling of 15691284055 in words is "fifteen billion, six hundred ninety-one million, two hundred eighty-four thousand, fifty-five".