1345555435621 has 8 divisors (see below), whose sum is σ = 1348357788000. Its totient is φ = 1342753507632.

The previous prime is 1345555435577. The next prime is 1345555435633. The reversal of 1345555435621 is 1265345555431.

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 1345555435621 - 2¹³ = 1345555427429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345555435661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6693846 + ... + 6891928.

It is an arithmetic number, because the mean of its divisors is an integer number (168544723500).

Almost surely, 2^{1345555435621} is an apocalyptic number.

It is an amenable number.

1345555435621 is a deficient number, since it is larger than the sum of its proper divisors (2802352379).

1345555435621 is a wasteful number, since it uses less digits than its factorization.

1345555435621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212195.

The product of its digits is 5400000, while the sum is 49.

The spelling of 1345555435621 in words is "one trillion, three hundred forty-five billion, five hundred fifty-five million, four hundred thirty-five thousand, six hundred twenty-one".