1340985735601 has 4 divisors (see below), whose sum is σ = 1373692704804. Its totient is φ = 1308278766400.

The previous prime is 1340985735581. The next prime is 1340985735611. The reversal of 1340985735601 is 1065375890431.

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 763834048576 + 577151687025 = 873976^2 + 759705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340985735601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340985735611) 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, 16353484540 + ... + 16353484621.

It is an arithmetic number, because the mean of its divisors is an integer number (343423176201).

Almost surely, 2^{1340985735601} is an apocalyptic number.

It is an amenable number.

1340985735601 is a deficient number, since it is larger than the sum of its proper divisors (32706969203).

1340985735601 is an equidigital number, since it uses as much as digits as its factorization.

1340985735601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32706969202.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 1340985735601 in words is "one trillion, three hundred forty billion, nine hundred eighty-five million, seven hundred thirty-five thousand, six hundred one".