1361213344160 has 48 divisors (see below), whose sum is σ = 3220883720712. Its totient is φ = 543635865600.

The previous prime is 1361213344151. The next prime is 1361213344199. The reversal of 1361213344160 is 614433121631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1235503387024 + 125709957136 = 1111532^2 + 354556^2 .

It is a super-2 number, since 2×1361213344160² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1361213344160.

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, 6533621 + ... + 6738740.

Almost surely, 2^{1361213344160} is an apocalyptic number.

1361213344160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361213344160 is an abundant number, since it is smaller than the sum of its proper divisors (1859670376552).

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

1361213344160 is a wasteful number, since it uses less digits than its factorization.

1361213344160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13273017 (or 13273009 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

Adding to 1361213344160 its reverse (614433121631), we get a palindrome (1975646465791).

The spelling of 1361213344160 in words is "one trillion, three hundred sixty-one billion, two hundred thirteen million, three hundred forty-four thousand, one hundred sixty".