122615317256 has 32 divisors (see below), whose sum is σ = 235292117760. Its totient is φ = 59881129152.

The previous prime is 122615317243. The next prime is 122615317289. The reversal of 122615317256 is 652713516221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553850 + ... + 742953.

It is an arithmetic number, because the mean of its divisors is an integer number (7352878680).

Almost surely, 2^122615317256 is an apocalyptic number.

It is an amenable number.

122615317256 is a deficient number, since it is larger than the sum of its proper divisors (112676800504).

122615317256 is a wasteful number, since it uses less digits than its factorization.

122615317256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297085 (or 1297081 counting only the distinct ones).

The product of its digits is 151200, while the sum is 41.

The spelling of 122615317256 in words is "one hundred twenty-two billion, six hundred fifteen million, three hundred seventeen thousand, two hundred fifty-six".