15266640289240 has 32 divisors (see below), whose sum is σ = 34555628933280. Its totient is φ = 6070089309952.

The previous prime is 15266640289213. The next prime is 15266640289273. The reversal of 15266640289240 is 4298204666251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142705917 + ... + 1142719276.

It is an arithmetic number, because the mean of its divisors is an integer number (1079863404165).

Almost surely, 2^{15266640289240} is an apocalyptic number.

15266640289240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15266640289240 is an abundant number, since it is smaller than the sum of its proper divisors (19288988644040).

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

15266640289240 is a wasteful number, since it uses less digits than its factorization.

15266640289240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285425371 (or 2285425367 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 55.

The spelling of 15266640289240 in words is "fifteen trillion, two hundred sixty-six billion, six hundred forty million, two hundred eighty-nine thousand, two hundred forty".