1344669145568 has 48 divisors (see below), whose sum is σ = 3027276776160. Its totient is φ = 575949405696.

The previous prime is 1344669145541. The next prime is 1344669145571. The reversal of 1344669145568 is 8655419664431.

It is a happy number.

It is a super-2 number, since 2×1344669145568² (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 1344669145568.

It is a congruent number.

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, 1373471 + ... + 2139102.

It is an arithmetic number, because the mean of its divisors is an integer number (63068266170).

Almost surely, 2^{1344669145568} is an apocalyptic number.

It is an amenable number.

1344669145568 is an abundant number, since it is smaller than the sum of its proper divisors (1682607630592).

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

1344669145568 is a wasteful number, since it uses less digits than its factorization.

1344669145568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514299 (or 3514291 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 62.

The spelling of 1344669145568 in words is "one trillion, three hundred forty-four billion, six hundred sixty-nine million, one hundred forty-five thousand, five hundred sixty-eight".