16420476879 has 12 divisors (see below), whose sum is σ = 23953304232. Its totient is φ = 10838598000.

The previous prime is 16420476869. The next prime is 16420476881. The reversal of 16420476879 is 97867402461.

16420476879 is a `hidden beast` number, since 164 + 2 + 0 + 476 + 8 + 7 + 9 = 666.

It is not a de Polignac number, because 16420476879 - 2¹¹ = 16420474831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16420476869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9031257 + ... + 9033074.

It is an arithmetic number, because the mean of its divisors is an integer number (1996108686).

Almost surely, 2^16420476879 is an apocalyptic number.

16420476879 is a deficient number, since it is larger than the sum of its proper divisors (7532827353).

16420476879 is a wasteful number, since it uses less digits than its factorization.

16420476879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18064438 (or 18064435 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 16420476879 in words is "sixteen billion, four hundred twenty million, four hundred seventy-six thousand, eight hundred seventy-nine".