15520423541 has 8 divisors (see below), whose sum is σ = 17739196800. Its totient is φ = 13302042768.

The previous prime is 15520423511. The next prime is 15520423573. The reversal of 15520423541 is 14532402551.

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

It is not a de Polignac number, because 15520423541 - 2¹⁴ = 15520407157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15520423498 and 15520423507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15520423511) 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, 7841 + ... + 176358.

It is an arithmetic number, because the mean of its divisors is an integer number (2217399600).

Almost surely, 2^15520423541 is an apocalyptic number.

It is an amenable number.

15520423541 is a deficient number, since it is larger than the sum of its proper divisors (2218773259).

15520423541 is a wasteful number, since it uses less digits than its factorization.

15520423541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196243.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 15520423541 in words is "fifteen billion, five hundred twenty million, four hundred twenty-three thousand, five hundred forty-one".