16212516061 has 32 divisors (see below), whose sum is σ = 20177982720. Its totient is φ = 12716352000.

The previous prime is 16212516049. The next prime is 16212516079. The reversal of 16212516061 is 16061521261.

It is a cyclic number.

It is not a de Polignac number, because 16212516061 - 2¹³ = 16212507869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16212513061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 536035 + ... + 565471.

It is an arithmetic number, because the mean of its divisors is an integer number (630561960).

Almost surely, 2^16212516061 is an apocalyptic number.

It is an amenable number.

16212516061 is a deficient number, since it is larger than the sum of its proper divisors (3965466659).

16212516061 is a wasteful number, since it uses less digits than its factorization.

16212516061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29605.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 16212516061 in words is "sixteen billion, two hundred twelve million, five hundred sixteen thousand, sixty-one".