15280420065240 has 128 divisors (see below), whose sum is σ = 50017308088320. Its totient is φ = 3703702732800.

The previous prime is 15280420065217. The next prime is 15280420065289. The reversal of 15280420065240 is 4256002408251.

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, 6644632 + ... + 8643608.

It is an arithmetic number, because the mean of its divisors is an integer number (390760219440).

Almost surely, 2^{15280420065240} is an apocalyptic number.

15280420065240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15280420065240 is an abundant number, since it is smaller than the sum of its proper divisors (34736888023080).

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

15280420065240 is a wasteful number, since it uses less digits than its factorization.

15280420065240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004793 (or 2004789 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The spelling of 15280420065240 in words is "fifteen trillion, two hundred eighty billion, four hundred twenty million, sixty-five thousand, two hundred forty".