128168545415 has 8 divisors (see below), whose sum is σ = 155013296640. Its totient is φ = 101727474912.

The previous prime is 128168545409. The next prime is 128168545447. The reversal of 128168545415 is 514545861821.

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

It is a cyclic number.

It is not a de Polignac number, because 128168545415 - 2²⁰ = 128167496839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100919480 + ... + 100920749.

It is an arithmetic number, because the mean of its divisors is an integer number (19376662080).

Almost surely, 2^128168545415 is an apocalyptic number.

128168545415 is a deficient number, since it is larger than the sum of its proper divisors (26844751225).

128168545415 is a wasteful number, since it uses less digits than its factorization.

128168545415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201840361.

The product of its digits is 1536000, while the sum is 50.

The spelling of 128168545415 in words is "one hundred twenty-eight billion, one hundred sixty-eight million, five hundred forty-five thousand, four hundred fifteen".