655651141156556 has 24 divisors (see below), whose sum is σ = 1147990759624800. Its totient is φ = 327653784950912.

The previous prime is 655651141156523. The next prime is 655651141156703.

655651141156556 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×655651141156556² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802213145 + ... + 803030031.

It is an arithmetic number, because the mean of its divisors is an integer number (47832948317700).

Almost surely, 2^{655651141156556} is an apocalyptic number.

It is an amenable number.

655651141156556 is a deficient number, since it is larger than the sum of its proper divisors (492339618468244).

655651141156556 is a wasteful number, since it uses less digits than its factorization.

655651141156556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921793 (or 921791 counting only the distinct ones).

The product of its digits is 81000000, while the sum is 62.

Adding to 655651141156556 its product of digits (81000000), we get a palindrome (655651222156556).

Subtracting from 655651141156556 its product of digits (81000000), we obtain a palindrome (655651060156556).

The spelling of 655651141156556 in words is "six hundred fifty-five trillion, six hundred fifty-one billion, one hundred forty-one million, one hundred fifty-six thousand, five hundred fifty-six".