128061260061952 has 72 divisors (see below), whose sum is σ = 292583059876800. Its totient is φ = 54800113815552.

The previous prime is 128061260061923. The next prime is 128061260061961. The reversal of 128061260061952 is 259160062160821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 128061260061896 and 128061260061905.

It is a congruent number.

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, 53039677 + ... + 55401532.

It is an arithmetic number, because the mean of its divisors is an integer number (4063653609400).

Almost surely, 2^{128061260061952} is an apocalyptic number.

It is an amenable number.

128061260061952 is an abundant number, since it is smaller than the sum of its proper divisors (164521799814848).

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

128061260061952 is an equidigital number, since it uses as much as digits as its factorization.

128061260061952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108441891 (or 108441877 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 128061260061952 in words is "one hundred twenty-eight trillion, sixty-one billion, two hundred sixty million, sixty-one thousand, nine hundred fifty-two".