16675020139 has 4 divisors (see below), whose sum is σ = 16704638856. Its totient is φ = 16645401424.

The previous prime is 16675020137. The next prime is 16675020143. The reversal of 16675020139 is 93102057661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93102057661 = 79 ⋅1178507059.

It is a cyclic number.

It is not a de Polignac number, because 16675020139 - 2¹ = 16675020137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16675020133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14808514 + ... + 14809639.

It is an arithmetic number, because the mean of its divisors is an integer number (4176159714).

Almost surely, 2^16675020139 is an apocalyptic number.

16675020139 is a deficient number, since it is larger than the sum of its proper divisors (29618717).

16675020139 is an equidigital number, since it uses as much as digits as its factorization.

16675020139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29618716.

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 16675020139 in words is "sixteen billion, six hundred seventy-five million, twenty thousand, one hundred thirty-nine".