1566213361360 has 40 divisors (see below), whose sum is σ = 3642090596640. Its totient is φ = 626374457472.

The previous prime is 1566213361343. The next prime is 1566213361379. The reversal of 1566213361360 is 631633126651.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1277062 + ... + 2182501.

It is an arithmetic number, because the mean of its divisors is an integer number (91052264916).

Almost surely, 2^{1566213361360} is an apocalyptic number.

1566213361360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1566213361360 is an abundant number, since it is smaller than the sum of its proper divisors (2075877235280).

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

1566213361360 is a wasteful number, since it uses less digits than its factorization.

1566213361360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465235 (or 3465229 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 1566213361360 in words is "one trillion, five hundred sixty-six billion, two hundred thirteen million, three hundred sixty-one thousand, three hundred sixty".