6454081556 has 24 divisors (see below), whose sum is σ = 12165649440. Its totient is φ = 2978271072.

The previous prime is 6454081553. The next prime is 6454081591. The reversal of 6454081556 is 6551804546.

It is a super-2 number, since 2×6454081556² = 83310337462998762272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6454081553) 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, 537935 + ... + 549801.

It is an arithmetic number, because the mean of its divisors is an integer number (506902060).

Almost surely, 2^6454081556 is an apocalyptic number.

It is an amenable number.

6454081556 is a deficient number, since it is larger than the sum of its proper divisors (5711567884).

6454081556 is a wasteful number, since it uses less digits than its factorization.

6454081556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22343 (or 22341 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The square root of 6454081556 is about 80337.2986600869. The cubic root of 6454081556 is about 1861.8505454244.

The spelling of 6454081556 in words is "six billion, four hundred fifty-four million, eighty-one thousand, five hundred fifty-six".