7655816128406 has 16 divisors (see below), whose sum is σ = 11490358070448. Its totient is φ = 3825697075200.

The previous prime is 7655816128397. The next prime is 7655816128409. The reversal of 7655816128406 is 6048216185567.

It is a super-2 number, since 2×7655816128406² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7655816128409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56340626 + ... + 56476346.

It is an arithmetic number, because the mean of its divisors is an integer number (718147379403).

Almost surely, 2^{7655816128406} is an apocalyptic number.

7655816128406 is a deficient number, since it is larger than the sum of its proper divisors (3834541942042).

7655816128406 is a wasteful number, since it uses less digits than its factorization.

7655816128406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151807.

The product of its (nonzero) digits is 19353600, while the sum is 59.

The spelling of 7655816128406 in words is "seven trillion, six hundred fifty-five billion, eight hundred sixteen million, one hundred twenty-eight thousand, four hundred six".