11970823340816 has 40 divisors (see below), whose sum is σ = 23820876181080. Its totient is φ = 5823507999744.

The previous prime is 11970823340761. The next prime is 11970823340863. The reversal of 11970823340816 is 61804332807911.

It can be written as a sum of positive squares in 4 ways, for example, as 5722123273216 + 6248700067600 = 2392096^2 + 2499740^2 .

It is a super-2 number, since 2×11970823340816² (a number of 27 digits) contains 22 as substring.

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, 28036580 + ... + 28460348.

It is an arithmetic number, because the mean of its divisors is an integer number (595521904527).

Almost surely, 2^{11970823340816} is an apocalyptic number.

11970823340816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11970823340816 is a deficient number, since it is larger than the sum of its proper divisors (11850052840264).

11970823340816 is a wasteful number, since it uses less digits than its factorization.

11970823340816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471531 (or 471525 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 11970823340816 in words is "eleven trillion, nine hundred seventy billion, eight hundred twenty-three million, three hundred forty thousand, eight hundred sixteen".