128546266512 has 80 divisors (see below), whose sum is σ = 335729726208. Its totient is φ = 42378470400.

The previous prime is 128546266367. The next prime is 128546266543. The reversal of 128546266512 is 215662645821.

It is a super-2 number, since 2×128546266512² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4606233 + ... + 4634055.

Almost surely, 2^128546266512 is an apocalyptic number.

128546266512 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 128546266512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167864863104).

128546266512 is an abundant number, since it is smaller than the sum of its proper divisors (207183459696).

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

128546266512 is a wasteful number, since it uses less digits than its factorization.

128546266512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28888 (or 28882 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The spelling of 128546266512 in words is "one hundred twenty-eight billion, five hundred forty-six million, two hundred sixty-six thousand, five hundred twelve".