15456545506020 has 192 divisors, whose sum is σ = 44199296064000. Its totient is φ = 4035109478400.

The previous prime is 15456545505991. The next prime is 15456545506091. The reversal of 15456545506020 is 2060554565451.

It is a super-3 number, since 3×15456545506020³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 321658956 + ... + 321707004.

It is an arithmetic number, because the mean of its divisors is an integer number (230204667000).

Almost surely, 2^{15456545506020} is an apocalyptic number.

15456545506020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15456545506020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22099648032000).

15456545506020 is an abundant number, since it is smaller than the sum of its proper divisors (28742750557980).

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

15456545506020 is a wasteful number, since it uses less digits than its factorization.

15456545506020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48758 (or 48756 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 48.

The spelling of 15456545506020 in words is "fifteen trillion, four hundred fifty-six billion, five hundred forty-five million, five hundred six thousand, twenty".