656614401441 has 32 divisors (see below), whose sum is σ = 899940924288. Its totient is φ = 425591861760.

The previous prime is 656614401439. The next prime is 656614401461. The reversal of 656614401441 is 144104416656.

It is not a de Polignac number, because 656614401441 - 2¹ = 656614401439 is a prime.

It is a super-2 number, since 2×656614401441² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 656614401393 and 656614401402.

It is not an unprimeable number, because it can be changed into a prime (656614401461) 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, 43543195 + ... + 43558271.

It is an arithmetic number, because the mean of its divisors is an integer number (28123153884).

Almost surely, 2^656614401441 is an apocalyptic number.

It is an amenable number.

656614401441 is a deficient number, since it is larger than the sum of its proper divisors (243326522847).

656614401441 is a wasteful number, since it uses less digits than its factorization.

656614401441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16321.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 656614401441 in words is "six hundred fifty-six billion, six hundred fourteen million, four hundred one thousand, four hundred forty-one".