1399377801216 has 208 divisors, whose sum is σ = 4006388210688. Its totient is φ = 432832512000.

The previous prime is 1399377801197. The next prime is 1399377801253. The reversal of 1399377801216 is 6121087739931.

It is a super-2 number, since 2×1399377801216² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14784441 + ... + 14878791.

Almost surely, 2^{1399377801216} is an apocalyptic number.

1399377801216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1399377801216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2003194105344).

1399377801216 is an abundant number, since it is smaller than the sum of its proper divisors (2607010409472).

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

1399377801216 is an equidigital number, since it uses as much as digits as its factorization.

1399377801216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94466 (or 94444 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 57.

The spelling of 1399377801216 in words is "one trillion, three hundred ninety-nine billion, three hundred seventy-seven million, eight hundred one thousand, two hundred sixteen".