128016603 has 24 divisors (see below), whose sum is σ = 217242480. Its totient is φ = 71616960.

The previous prime is 128016599. The next prime is 128016611. The reversal of 128016603 is 306610821.

It is not a de Polignac number, because 128016603 - 2² = 128016599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128016653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48448 + ... + 51021.

It is an arithmetic number, because the mean of its divisors is an integer number (9051770).

Almost surely, 2^128016603 is an apocalyptic number.

128016603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

128016603 is a deficient number, since it is larger than the sum of its proper divisors (89225877).

128016603 is a wasteful number, since it uses less digits than its factorization.

128016603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99499 (or 99496 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 128016603 is about 11314.4422310603. The cubic root of 128016603 is about 503.9902090880.

The spelling of 128016603 in words is "one hundred twenty-eight million, sixteen thousand, six hundred three".