15204002541240 has 128 divisors (see below), whose sum is σ = 45870487790400. Its totient is φ = 4031431004160.

The previous prime is 15204002541223. The next prime is 15204002541253. The reversal of 15204002541240 is 4214520040251.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 15204002541198 and 15204002541207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166611946 + ... + 166703174.

Almost surely, 2^{15204002541240} is an apocalyptic number.

15204002541240 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 15204002541240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22935243895200).

15204002541240 is an abundant number, since it is smaller than the sum of its proper divisors (30666485249160).

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

15204002541240 is a wasteful number, since it uses less digits than its factorization.

15204002541240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99097 (or 99093 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 15204002541240 its reverse (4214520040251), we get a palindrome (19418522581491).

The spelling of 15204002541240 in words is "fifteen trillion, two hundred four billion, two million, five hundred forty-one thousand, two hundred forty".