15381355040 has 24 divisors (see below), whose sum is σ = 36338451660. Its totient is φ = 6152541952.

The previous prime is 15381355039. The next prime is 15381355051. The reversal of 15381355040 is 4055318351.

It can be written as a sum of positive squares in 2 ways, for example, as 14352998416 + 1028356624 = 119804^2 + 32068^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48066575 + ... + 48066894.

Almost surely, 2^15381355040 is an apocalyptic number.

15381355040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15381355040 is an abundant number, since it is smaller than the sum of its proper divisors (20957096620).

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

15381355040 is an equidigital number, since it uses as much as digits as its factorization.

15381355040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96133484 (or 96133476 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 15381355040 in words is "fifteen billion, three hundred eighty-one million, three hundred fifty-five thousand, forty".