6661141628 has 24 divisors (see below), whose sum is σ = 11766529152. Its totient is φ = 3299308544.

The previous prime is 6661141621. The next prime is 6661141661. The reversal of 6661141628 is 8261411666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661141621) 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, 1306901 + ... + 1311987.

It is an arithmetic number, because the mean of its divisors is an integer number (490272048).

Almost surely, 2^6661141628 is an apocalyptic number.

It is an amenable number.

6661141628 is a deficient number, since it is larger than the sum of its proper divisors (5105387524).

6661141628 is a wasteful number, since it uses less digits than its factorization.

6661141628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8101 (or 8099 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 6661141628 is about 81615.8172660177. The cubic root of 6661141628 is about 1881.5519880207.

The spelling of 6661141628 in words is "six billion, six hundred sixty-one million, one hundred forty-one thousand, six hundred twenty-eight".