16656652043 has 16 divisors (see below), whose sum is σ = 18193824000. Its totient is φ = 15195872160.

The previous prime is 16656652027. The next prime is 16656652079. The reversal of 16656652043 is 34025665661.

It is a cyclic number.

It is not a de Polignac number, because 16656652043 - 2⁴ = 16656652027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16656651985 and 16656652003.

It is not an unprimeable number, because it can be changed into a prime (16656652093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85568 + ... + 201581.

It is an arithmetic number, because the mean of its divisors is an integer number (1137114000).

Almost surely, 2^16656652043 is an apocalyptic number.

16656652043 is a deficient number, since it is larger than the sum of its proper divisors (1537171957).

16656652043 is a wasteful number, since it uses less digits than its factorization.

16656652043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287282.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 16656652043 in words is "sixteen billion, six hundred fifty-six million, six hundred fifty-two thousand, forty-three".