1600499879421 has 16 divisors (see below), whose sum is σ = 2261391576000. Its totient is φ = 1004057849088.

The previous prime is 1600499879273. The next prime is 1600499879513. The reversal of 1600499879421 is 1249789940061.

It is not a de Polignac number, because 1600499879421 - 2⁹ = 1600499878909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600499879221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 94216156 + ... + 94233141.

It is an arithmetic number, because the mean of its divisors is an integer number (141336973500).

Almost surely, 2^{1600499879421} is an apocalyptic number.

It is an amenable number.

1600499879421 is a deficient number, since it is larger than the sum of its proper divisors (660891696579).

1600499879421 is a wasteful number, since it uses less digits than its factorization.

1600499879421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188449468.

The product of its (nonzero) digits is 7838208, while the sum is 60.

The spelling of 1600499879421 in words is "one trillion, six hundred billion, four hundred ninety-nine million, eight hundred seventy-nine thousand, four hundred twenty-one".