15201235435040 has 72 divisors (see below), whose sum is σ = 36350820200268. Its totient is φ = 6007234772480.

The previous prime is 15201235435033. The next prime is 15201235435073. The reversal of 15201235435040 is 4053453210251.

15201235435040 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 15199674552976 + 1560882064 = 3898676^2 + 39508^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5793371 + ... + 7997850.

Almost surely, 2^{15201235435040} is an apocalyptic number.

15201235435040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15201235435040 is an abundant number, since it is smaller than the sum of its proper divisors (21149584765228).

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

15201235435040 is an equidigital number, since it uses as much as digits as its factorization.

15201235435040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13791402 (or 13791311 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 15201235435040 its reverse (4053453210251), we get a palindrome (19254688645291).

The spelling of 15201235435040 in words is "fifteen trillion, two hundred one billion, two hundred thirty-five million, four hundred thirty-five thousand, forty".