1351602340561 has 8 divisors (see below), whose sum is σ = 1561209120864. Its totient is φ = 1156451200320.

The previous prime is 1351602340549. The next prime is 1351602340597. The reversal of 1351602340561 is 1650432061531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1351602340561 - 2¹³ = 1351602332369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1351602340561.

It is not an unprimeable number, because it can be changed into a prime (1351602341561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3613909815 + ... + 3613910188.

It is an arithmetic number, because the mean of its divisors is an integer number (195151140108).

Almost surely, 2^{1351602340561} is an apocalyptic number.

1351602340561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1351602340561 is a deficient number, since it is larger than the sum of its proper divisors (209606780303).

1351602340561 is a wasteful number, since it uses less digits than its factorization.

1351602340561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227820031.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 1351602340561 in words is "one trillion, three hundred fifty-one billion, six hundred two million, three hundred forty thousand, five hundred sixty-one".