16676108421 has 32 divisors (see below), whose sum is σ = 26120263680. Its totient is φ = 9263750976.

The previous prime is 16676108413. The next prime is 16676108497. The reversal of 16676108421 is 12480167661.

It is not a de Polignac number, because 16676108421 - 2³ = 16676108413 is a prime.

It is a super-2 number, since 2×16676108421² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16676108921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 969720 + ... + 986766.

It is an arithmetic number, because the mean of its divisors is an integer number (816258240).

Almost surely, 2^16676108421 is an apocalyptic number.

It is an amenable number.

16676108421 is a deficient number, since it is larger than the sum of its proper divisors (9444155259).

16676108421 is a wasteful number, since it uses less digits than its factorization.

16676108421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18353.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 16676108421 in words is "sixteen billion, six hundred seventy-six million, one hundred eight thousand, four hundred twenty-one".