15542455120 has 40 divisors (see below), whose sum is σ = 37301898240. Its totient is φ = 6016433280.

The previous prime is 15542455087. The next prime is 15542455129. The reversal of 15542455120 is 2155424551.

15542455120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×15542455120² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15542455129) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3131080 + ... + 3136039.

It is an arithmetic number, because the mean of its divisors is an integer number (932547456).

Almost surely, 2^15542455120 is an apocalyptic number.

15542455120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15542455120 is an abundant number, since it is smaller than the sum of its proper divisors (21759443120).

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

15542455120 is a wasteful number, since it uses less digits than its factorization.

15542455120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6267163 (or 6267157 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

Adding to 15542455120 its reverse (2155424551), we get a palindrome (17697879671).

The spelling of 15542455120 in words is "fifteen billion, five hundred forty-two million, four hundred fifty-five thousand, one hundred twenty".