6661455053 has 8 divisors (see below), whose sum is σ = 7267651776. Its totient is φ = 6055360000.

The previous prime is 6661455029. The next prime is 6661455067. The reversal of 6661455053 is 3505541666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6661455053 - 2²⁸ = 6393019597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6661455053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661455013) 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, 193928 + ... + 225678.

It is an arithmetic number, because the mean of its divisors is an integer number (908456472).

Almost surely, 2^6661455053 is an apocalyptic number.

It is an amenable number.

6661455053 is a deficient number, since it is larger than the sum of its proper divisors (606196723).

6661455053 is a wasteful number, since it uses less digits than its factorization.

6661455053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50835.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 6661455053 is about 81617.7373675600. The cubic root of 6661455053 is about 1881.5814982866.

The spelling of 6661455053 in words is "six billion, six hundred sixty-one million, four hundred fifty-five thousand, fifty-three".