6661032633 has 72 divisors (see below), whose sum is σ = 10732234968. Its totient is φ = 3963009024.

The previous prime is 6661032617. The next prime is 6661032643. The reversal of 6661032633 is 3362301666.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 736959609 + 5924073024 = 27147^2 + 76968^2 .

It is not a de Polignac number, because 6661032633 - 2⁴ = 6661032617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6661032643) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 44704843 + ... + 44704991.

It is an arithmetic number, because the mean of its divisors is an integer number (149058819).

Almost surely, 2^6661032633 is an apocalyptic number.

It is an amenable number.

6661032633 is a deficient number, since it is larger than the sum of its proper divisors (4071202335).

6661032633 is a wasteful number, since it uses less digits than its factorization.

6661032633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The square root of 6661032633 is about 81615.1495311992. The cubic root of 6661032633 is about 1881.5417254717.

The spelling of 6661032633 in words is "six billion, six hundred sixty-one million, thirty-two thousand, six hundred thirty-three".