16616161277452 has 12 divisors (see below), whose sum is σ = 31721762438856. Its totient is φ = 7552800580640.

The previous prime is 16616161277431. The next prime is 16616161277453. The reversal of 16616161277452 is 25477216161661.

It is a super-2 number, since 2×16616161277452² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16616161277393 and 16616161277402.

It is not an unprimeable number, because it can be changed into a prime (16616161277453) 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, 188820014473 + ... + 188820014560.

It is an arithmetic number, because the mean of its divisors is an integer number (2643480203238).

Almost surely, 2^{16616161277452} is an apocalyptic number.

It is an amenable number.

16616161277452 is a deficient number, since it is larger than the sum of its proper divisors (15105601161404).

16616161277452 is a wasteful number, since it uses less digits than its factorization.

16616161277452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377640029048 (or 377640029046 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The spelling of 16616161277452 in words is "sixteen trillion, six hundred sixteen billion, one hundred sixty-one million, two hundred seventy-seven thousand, four hundred fifty-two".