122646510505 has 32 divisors (see below), whose sum is σ = 153807137568. Its totient is φ = 93809664000.

The previous prime is 122646510499. The next prime is 122646510599. The reversal of 122646510505 is 505015646221.

It can be written as a sum of positive squares in 16 ways, for example, as 41866070544 + 80780439961 = 204612^2 + 284219^2 .

It is not a de Polignac number, because 122646510505 - 2¹⁷ = 122646379433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2323405 + ... + 2375605.

It is an arithmetic number, because the mean of its divisors is an integer number (4806473049).

Almost surely, 2^122646510505 is an apocalyptic number.

It is an amenable number.

122646510505 is a deficient number, since it is larger than the sum of its proper divisors (31160627063).

122646510505 is a wasteful number, since it uses less digits than its factorization.

122646510505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52477.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 122646510505 in words is "one hundred twenty-two billion, six hundred forty-six million, five hundred ten thousand, five hundred five".