128013355562 has 8 divisors (see below), whose sum is σ = 203315329476. Its totient is φ = 60241579072.

The previous prime is 128013355559. The next prime is 128013355567. The reversal of 128013355562 is 265553310821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 126656980321 + 1356375241 = 355889^2 + 36829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (128013355567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1882549313 + ... + 1882549380.

Almost surely, 2^128013355562 is an apocalyptic number.

128013355562 is a deficient number, since it is larger than the sum of its proper divisors (75301973914).

128013355562 is a wasteful number, since it uses less digits than its factorization.

128013355562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765098712.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 128013355562 in words is "one hundred twenty-eight billion, thirteen million, three hundred fifty-five thousand, five hundred sixty-two".