122741561517 has 16 divisors (see below), whose sum is σ = 168943334208. Its totient is φ = 79217429760.

The previous prime is 122741561497. The next prime is 122741561521. The reversal of 122741561517 is 715165147221.

It is not a de Polignac number, because 122741561517 - 2²² = 122737367213 is a prime.

It is a super-4 number, since 4×122741561517⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122741561557) 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, 4195534 + ... + 4224687.

It is an arithmetic number, because the mean of its divisors is an integer number (10558958388).

Almost surely, 2^122741561517 is an apocalyptic number.

It is an amenable number.

122741561517 is a deficient number, since it is larger than the sum of its proper divisors (46201772691).

122741561517 is a wasteful number, since it uses less digits than its factorization.

122741561517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8420380.

The product of its digits is 117600, while the sum is 42.

The spelling of 122741561517 in words is "one hundred twenty-two billion, seven hundred forty-one million, five hundred sixty-one thousand, five hundred seventeen".