128206333190530 has 32 divisors (see below), whose sum is σ = 277619729016960. Its totient is φ = 41642959351680.

The previous prime is 128206333190527. The next prime is 128206333190531. The reversal of 128206333190530 is 35091333602821.

It is a super-2 number, since 2×128206333190530² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128206333190531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48197868291 + ... + 48197870950.

It is an arithmetic number, because the mean of its divisors is an integer number (8675616531780).

Almost surely, 2^{128206333190530} is an apocalyptic number.

128206333190530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128206333190530 is an abundant number, since it is smaller than the sum of its proper divisors (149413395826430).

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

128206333190530 is a wasteful number, since it uses less digits than its factorization.

128206333190530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96395739274.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 128206333190530 in words is "one hundred twenty-eight trillion, two hundred six billion, three hundred thirty-three million, one hundred ninety thousand, five hundred thirty".