122716661571 has 12 divisors (see below), whose sum is σ = 202579885872. Its totient is φ = 70123806576.

The previous prime is 122716661569. The next prime is 122716661629. The reversal of 122716661571 is 175166617221.

It is not a de Polignac number, because 122716661571 - 2¹ = 122716661569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122716661071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 973941696 + ... + 973941821.

It is an arithmetic number, because the mean of its divisors is an integer number (16881657156).

Almost surely, 2^122716661571 is an apocalyptic number.

122716661571 is a deficient number, since it is larger than the sum of its proper divisors (79863224301).

122716661571 is a wasteful number, since it uses less digits than its factorization.

122716661571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947883530 (or 1947883527 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The spelling of 122716661571 in words is "one hundred twenty-two billion, seven hundred sixteen million, six hundred sixty-one thousand, five hundred seventy-one".