6611020451 has 4 divisors (see below), whose sum is σ = 7555451952. Its totient is φ = 5666588952.

The previous prime is 6611020421. The next prime is 6611020463. The reversal of 6611020451 is 1540201166.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6611020451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6611020451.

It is not an unprimeable number, because it can be changed into a prime (6611020421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472215740 + ... + 472215753.

It is an arithmetic number, because the mean of its divisors is an integer number (1888862988).

Almost surely, 2^6611020451 is an apocalyptic number.

6611020451 is a deficient number, since it is larger than the sum of its proper divisors (944431501).

6611020451 is an equidigital number, since it uses as much as digits as its factorization.

6611020451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944431500.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 6611020451 is about 81308.1819437626. The cubic root of 6611020451 is about 1876.8209108440.

The spelling of 6611020451 in words is "six billion, six hundred eleven million, twenty thousand, four hundred fifty-one".