13566506340 has 48 divisors (see below), whose sum is σ = 37991822400. Its totient is φ = 3617201280.

The previous prime is 13566506329. The next prime is 13566506357. The reversal of 13566506340 is 4360566531.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555711 + ... + 579609.

It is an arithmetic number, because the mean of its divisors is an integer number (791496300).

Almost surely, 2^13566506340 is an apocalyptic number.

13566506340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13566506340 is an abundant number, since it is smaller than the sum of its proper divisors (24425316060).

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

13566506340 is a wasteful number, since it uses less digits than its factorization.

13566506340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33372 (or 33370 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 39.

The spelling of 13566506340 in words is "thirteen billion, five hundred sixty-six million, five hundred six thousand, three hundred forty".