6281664156 has 96 divisors (see below), whose sum is σ = 16636838400. Its totient is φ = 2049079680.

The previous prime is 6281664149. The next prime is 6281664173. The reversal of 6281664156 is 6514661826.

6281664156 is a `hidden beast` number, since 628 + 1 + 6 + 6 + 4 + 15 + 6 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1482561 + ... + 1486791.

It is an arithmetic number, because the mean of its divisors is an integer number (173300400).

Almost surely, 2^6281664156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6281664156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8318419200).

6281664156 is an abundant number, since it is smaller than the sum of its proper divisors (10355174244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6281664156 is a wasteful number, since it uses less digits than its factorization.

6281664156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536 (or 4528 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 6281664156 is about 79256.9502062753. The cubic root of 6281664156 is about 1845.1212241058.

The spelling of 6281664156 in words is "six billion, two hundred eighty-one million, six hundred sixty-four thousand, one hundred fifty-six".