1642466556263 has 8 divisors (see below), whose sum is σ = 1768927791456. Its totient is φ = 1516022128800.

The previous prime is 1642466556257. The next prime is 1642466556343. The reversal of 1642466556263 is 3626556642461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1642466556263 - 2²⁶ = 1642399447399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1642466556199 and 1642466556208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642466556163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3998603 + ... + 4390188.

It is an arithmetic number, because the mean of its divisors is an integer number (221115973932).

Almost surely, 2^{1642466556263} is an apocalyptic number.

1642466556263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1642466556263 is a deficient number, since it is larger than the sum of its proper divisors (126461235193).

1642466556263 is a wasteful number, since it uses less digits than its factorization.

1642466556263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8403865.

The product of its digits is 37324800, while the sum is 56.

The spelling of 1642466556263 in words is "one trillion, six hundred forty-two billion, four hundred sixty-six million, five hundred fifty-six thousand, two hundred sixty-three".