21616062335061 has 32 divisors (see below), whose sum is σ = 32729034234240. Its totient is φ = 12606739052544.

The previous prime is 21616062335029. The next prime is 21616062335089. The reversal of 21616062335061 is 16053326061612.

It is not a de Polignac number, because 21616062335061 - 2⁵ = 21616062335029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21616062330061) 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, 210397680 + ... + 210500393.

It is an arithmetic number, because the mean of its divisors is an integer number (1022782319820).

Almost surely, 2^{21616062335061} is an apocalyptic number.

It is an amenable number.

21616062335061 is a deficient number, since it is larger than the sum of its proper divisors (11112971899179).

21616062335061 is a wasteful number, since it uses less digits than its factorization.

21616062335061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420898165.

The product of its (nonzero) digits is 233280, while the sum is 42.

Adding to 21616062335061 its reverse (16053326061612), we get a palindrome (37669388396673).

The spelling of 21616062335061 in words is "twenty-one trillion, six hundred sixteen billion, sixty-two million, three hundred thirty-five thousand, sixty-one".