6651054499 has 4 divisors (see below), whose sum is σ = 6666415336. Its totient is φ = 6635693664.

The previous prime is 6651054497. The next prime is 6651054533. The reversal of 6651054499 is 9944501566.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6651054499 - 2¹ = 6651054497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6651054497) 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, 7679769 + ... + 7680634.

It is an arithmetic number, because the mean of its divisors is an integer number (1666603834).

Almost surely, 2^6651054499 is an apocalyptic number.

6651054499 is a deficient number, since it is larger than the sum of its proper divisors (15360837).

6651054499 is a wasteful number, since it uses less digits than its factorization.

6651054499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15360836.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 6651054499 is about 81553.9974434117. The cubic root of 6651054499 is about 1880.6017482018.

The spelling of 6651054499 in words is "six billion, six hundred fifty-one million, fifty-four thousand, four hundred ninety-nine".