128100516678690 has 64 divisors (see below), whose sum is σ = 313301897467776. Its totient is φ = 33509200038912.

The previous prime is 128100516678689. The next prime is 128100516678703. The reversal of 128100516678690 is 96876615001821.

It is a super-2 number, since 2×128100516678690² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 622557 + ... + 16018383.

It is an arithmetic number, because the mean of its divisors is an integer number (4895342147934).

Almost surely, 2^{128100516678690} is an apocalyptic number.

128100516678690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128100516678690 is an abundant number, since it is smaller than the sum of its proper divisors (185201380789086).

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

128100516678690 is a wasteful number, since it uses less digits than its factorization.

128100516678690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15401123.

The product of its (nonzero) digits is 8709120, while the sum is 60.

The spelling of 128100516678690 in words is "one hundred twenty-eight trillion, one hundred billion, five hundred sixteen million, six hundred seventy-eight thousand, six hundred ninety".