15155543040 has 352 divisors, whose sum is σ = 55675779840. Its totient is φ = 3479961600.

The previous prime is 15155543033. The next prime is 15155543047. The reversal of 15155543040 is 4034555151.

It is an interprime number because it is at equal distance from previous prime (15155543033) and next prime (15155543047).

It is a tau number, because it is divible by the number of its divisors (352).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 15155542992 and 15155543010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15155543047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3207880 + ... + 3212600.

Almost surely, 2^15155543040 is an apocalyptic number.

15155543040 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 15155543040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27837889920).

15155543040 is an abundant number, since it is smaller than the sum of its proper divisors (40520236800).

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

15155543040 is a wasteful number, since it uses less digits than its factorization.

15155543040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779 (or 4761 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 15155543040 in words is "fifteen billion, one hundred fifty-five million, five hundred forty-three thousand, forty".