2166047552 has 28 divisors (see below), whose sum is σ = 4358798496. Its totient is φ = 1067767680.

The previous prime is 2166047551. The next prime is 2166047603. The reversal of 2166047552 is 2557406612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166047551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233798 + ... + 242885.

Almost surely, 2^2166047552 is an apocalyptic number.

It is an amenable number.

2166047552 is an abundant number, since it is smaller than the sum of its proper divisors (2192750944).

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

2166047552 is an equidigital number, since it uses as much as digits as its factorization.

2166047552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476766 (or 476756 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 2166047552 is about 46540.8159790952. The cubic root of 2166047552 is about 1293.8660839400.

The spelling of 2166047552 in words is "two billion, one hundred sixty-six million, forty-seven thousand, five hundred fifty-two".