16211456545 has 16 divisors (see below), whose sum is σ = 20608079040. Its totient is φ = 12208307904.

The previous prime is 16211456543. The next prime is 16211456549. The reversal of 16211456545 is 54565411261.

It is a cyclic number.

It is not a de Polignac number, because 16211456545 - 2¹ = 16211456543 is a prime.

It is a super-2 number, since 2×16211456545² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16211456498 and 16211456507.

It is not an unprimeable number, because it can be changed into a prime (16211456543) 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, 528547 + ... + 558376.

It is an arithmetic number, because the mean of its divisors is an integer number (1288004940).

Almost surely, 2^16211456545 is an apocalyptic number.

It is an amenable number.

16211456545 is a deficient number, since it is larger than the sum of its proper divisors (4396622495).

16211456545 is a wasteful number, since it uses less digits than its factorization.

16211456545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087104.

The product of its digits is 144000, while the sum is 40.

The spelling of 16211456545 in words is "sixteen billion, two hundred eleven million, four hundred fifty-six thousand, five hundred forty-five".