1346244265561 has 4 divisors (see below), whose sum is σ = 1449801516772. Its totient is φ = 1242687014352.

The previous prime is 1346244265519. The next prime is 1346244265621. The reversal of 1346244265561 is 1655624426431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 450086683225 + 896157582336 = 670885^2 + 946656^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346244265561 - 2⁷ = 1346244265433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1346244265511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51778625586 + ... + 51778625611.

It is an arithmetic number, because the mean of its divisors is an integer number (362450379193).

Almost surely, 2^{1346244265561} is an apocalyptic number.

It is an amenable number.

1346244265561 is a deficient number, since it is larger than the sum of its proper divisors (103557251211).

1346244265561 is a wasteful number, since it uses less digits than its factorization.

1346244265561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103557251210.

The product of its digits is 4147200, while the sum is 49.

The spelling of 1346244265561 in words is "one trillion, three hundred forty-six billion, two hundred forty-four million, two hundred sixty-five thousand, five hundred sixty-one".