122645065572 has 72 divisors (see below), whose sum is σ = 321868027936. Its totient is φ = 40835104128.

The previous prime is 122645065471. The next prime is 122645065601. The reversal of 122645065572 is 275560546221.

122645065572 is a `hidden beast` number, since 1 + 2 + 26 + 4 + 50 + 6 + 5 + 572 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 786828 + ... + 929724.

Almost surely, 2^122645065572 is an apocalyptic number.

122645065572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122645065572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160934013968).

122645065572 is an abundant number, since it is smaller than the sum of its proper divisors (199222962364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122645065572 is a wasteful number, since it uses less digits than its factorization.

122645065572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143799 (or 143785 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 122645065572 in words is "one hundred twenty-two billion, six hundred forty-five million, sixty-five thousand, five hundred seventy-two".