16676400400136 has 64 divisors (see below), whose sum is σ = 32181546862080. Its totient is φ = 8095629507840.

The previous prime is 16676400400133. The next prime is 16676400400147. The reversal of 16676400400136 is 63100400467661.

It is a happy number.

It is a super-2 number, since 2×16676400400136² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16676400400133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281633045 + ... + 281692251.

It is an arithmetic number, because the mean of its divisors is an integer number (502836669720).

Almost surely, 2^{16676400400136} is an apocalyptic number.

It is an amenable number.

16676400400136 is a deficient number, since it is larger than the sum of its proper divisors (15505146461944).

16676400400136 is a wasteful number, since it uses less digits than its factorization.

16676400400136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61254 (or 61250 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

Adding to 16676400400136 its reverse (63100400467661), we get a palindrome (79776800867797).

The spelling of 16676400400136 in words is "sixteen trillion, six hundred seventy-six billion, four hundred million, four hundred thousand, one hundred thirty-six".