128146158267500 has 60 divisors (see below), whose sum is σ = 280244146004592. Its totient is φ = 51255879240000.

The previous prime is 128146158267487. The next prime is 128146158267527. The reversal of 128146158267500 is 5762851641821.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48695462 + ... + 51259538.

Almost surely, 2^{128146158267500} is an apocalyptic number.

128146158267500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128146158267500 is an abundant number, since it is smaller than the sum of its proper divisors (152097987737092).

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

128146158267500 is a wasteful number, since it uses less digits than its factorization.

128146158267500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584092 (or 2584075 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 56.

Adding to 128146158267500 its sum of digits (56), we get a square (128146158267556 = 11320166²).

The spelling of 128146158267500 in words is "one hundred twenty-eight trillion, one hundred forty-six billion, one hundred fifty-eight million, two hundred sixty-seven thousand, five hundred".