16026186421 has 12 divisors (see below), whose sum is σ = 18653624832. Its totient is φ = 13728686328.

The previous prime is 16026186419. The next prime is 16026186439. The reversal of 16026186421 is 12468162061.

It is not a de Polignac number, because 16026186421 - 2¹ = 16026186419 is a prime.

It is a super-3 number, since 3×16026186421³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16026181421) 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, 10485 + ... + 179338.

It is an arithmetic number, because the mean of its divisors is an integer number (1554468736).

Almost surely, 2^16026186421 is an apocalyptic number.

It is an amenable number.

16026186421 is a deficient number, since it is larger than the sum of its proper divisors (2627438411).

16026186421 is a wasteful number, since it uses less digits than its factorization.

16026186421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191560 (or 191553 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 16026186421 in words is "sixteen billion, twenty-six million, one hundred eighty-six thousand, four hundred twenty-one".