122455202555440 has 20 divisors (see below), whose sum is σ = 284708345941584. Its totient is φ = 48982081022144.

The previous prime is 122455202555369. The next prime is 122455202555593. The reversal of 122455202555440 is 44555202554221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765345015892 + ... + 765345016051.

Almost surely, 2^{122455202555440} is an apocalyptic number.

122455202555440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122455202555440 is an abundant number, since it is smaller than the sum of its proper divisors (162253143386144).

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

122455202555440 is a wasteful number, since it uses less digits than its factorization.

122455202555440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530690031956 (or 1530690031950 counting only the distinct ones).

The product of its (nonzero) digits is 3200000, while the sum is 46.

The spelling of 122455202555440 in words is "one hundred twenty-two trillion, four hundred fifty-five billion, two hundred two million, five hundred fifty-five thousand, four hundred forty".