19940614206553 has 4 divisors (see below), whose sum is σ = 19940628349620. Its totient is φ = 19940600063488.

The previous prime is 19940614206509. The next prime is 19940614206599. The reversal of 19940614206553 is 35560241604991.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1384274608704 + 18556339597849 = 1176552^2 + 4307707^2 .

It is a cyclic number.

It is not a de Polignac number, because 19940614206553 - 2²⁵ = 19940580652121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19940614206494 and 19940614206503.

It is not an unprimeable number, because it can be changed into a prime (19940614206353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4689100 + ... + 7865677.

It is an arithmetic number, because the mean of its divisors is an integer number (4985157087405).

Almost surely, 2^{19940614206553} is an apocalyptic number.

It is an amenable number.

19940614206553 is a deficient number, since it is larger than the sum of its proper divisors (14143067).

19940614206553 is a wasteful number, since it uses less digits than its factorization.

19940614206553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14143066.

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 19940614206553 in words is "nineteen trillion, nine hundred forty billion, six hundred fourteen million, two hundred six thousand, five hundred fifty-three".