2556161463 has 8 divisors (see below), whose sum is σ = 3608698608. Its totient is φ = 1603865984.

The previous prime is 2556161453. The next prime is 2556161467. The reversal of 2556161463 is 3641616552.

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 2556161463 - 2¹⁴ = 2556145079 is a prime.

It is a super-2 number, since 2×2556161463² = 13067922849852600738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556161467) 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, 25060356 + ... + 25060457.

It is an arithmetic number, because the mean of its divisors is an integer number (451087326).

Almost surely, 2^2556161463 is an apocalyptic number.

2556161463 is a deficient number, since it is larger than the sum of its proper divisors (1052537145).

2556161463 is a wasteful number, since it uses less digits than its factorization.

2556161463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50120833.

The product of its digits is 129600, while the sum is 39.

The square root of 2556161463 is about 50558.4954582313. The cubic root of 2556161463 is about 1367.2966855363.

The spelling of 2556161463 in words is "two billion, five hundred fifty-six million, one hundred sixty-one thousand, four hundred sixty-three".