440656620514253 has 64 divisors (see below), whose sum is σ = 559851305223168. Its totient is φ = 340599771832320.

The previous prime is 440656620514199. The next prime is 440656620514273. The reversal of 440656620514253 is 352415026656044.

It is not a de Polignac number, because 440656620514253 - 2¹⁰ = 440656620513229 is a prime.

It is a super-2 number, since 2×440656620514253² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440656620514195 and 440656620514204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440656620514273) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1621970801 + ... + 1622242457.

It is an arithmetic number, because the mean of its divisors is an integer number (8747676644112).

Almost surely, 2^{440656620514253} is an apocalyptic number.

It is an amenable number.

440656620514253 is a deficient number, since it is larger than the sum of its proper divisors (119194684708915).

440656620514253 is a wasteful number, since it uses less digits than its factorization.

440656620514253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285942.

The product of its (nonzero) digits is 20736000, while the sum is 53.

The spelling of 440656620514253 in words is "four hundred forty trillion, six hundred fifty-six billion, six hundred twenty million, five hundred fourteen thousand, two hundred fifty-three".