15534543340 has 12 divisors (see below), whose sum is σ = 32622541056. Its totient is φ = 6213817328.

The previous prime is 15534543329. The next prime is 15534543371. The reversal of 15534543340 is 4334543551.

It is a self number, because there is not a number n which added to its sum of digits gives 15534543340.

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, 388363564 + ... + 388363603.

It is an arithmetic number, because the mean of its divisors is an integer number (2718545088).

Almost surely, 2^15534543340 is an apocalyptic number.

15534543340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15534543340 is an abundant number, since it is smaller than the sum of its proper divisors (17087997716).

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

15534543340 is a wasteful number, since it uses less digits than its factorization.

15534543340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776727176 (or 776727174 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 15534543340 in words is "fifteen billion, five hundred thirty-four million, five hundred forty-three thousand, three hundred forty".