1399651320606 has 192 divisors, whose sum is σ = 3596322723840. Its totient is φ = 355374676800.

The previous prime is 1399651320503. The next prime is 1399651320611. The reversal of 1399651320606 is 6060231569931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 44589025 + ... + 44620403.

It is an arithmetic number, because the mean of its divisors is an integer number (18730847520).

Almost surely, 2^{1399651320606} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1399651320606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1798161361920).

1399651320606 is an abundant number, since it is smaller than the sum of its proper divisors (2196671403234).

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

1399651320606 is a wasteful number, since it uses less digits than its factorization.

1399651320606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31611 (or 31600 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 51.

The spelling of 1399651320606 in words is "one trillion, three hundred ninety-nine billion, six hundred fifty-one million, three hundred twenty thousand, six hundred six".