15545010420 has 36 divisors (see below), whose sum is σ = 47153198820. Its totient is φ = 4145336064.

The previous prime is 15545010413. The next prime is 15545010449. The reversal of 15545010420 is 2401054551.

15545010420 is a `hidden beast` number, since 1 + 554 + 5 + 0 + 104 + 2 + 0 = 666.

15545010420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8037481104 + 7507529316 = 89652^2 + 86646^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43180405 + ... + 43180764.

Almost surely, 2^15545010420 is an apocalyptic number.

15545010420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15545010420 is an abundant number, since it is smaller than the sum of its proper divisors (31608188400).

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

15545010420 is a wasteful number, since it uses less digits than its factorization.

15545010420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86361184 (or 86361179 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 15545010420 its reverse (2401054551), we get a palindrome (17946064971).

The spelling of 15545010420 in words is "fifteen billion, five hundred forty-five million, ten thousand, four hundred twenty".