6211126505 has 16 divisors (see below), whose sum is σ = 7956144000. Its totient is φ = 4641073920.

The previous prime is 6211126459. The next prime is 6211126507. The reversal of 6211126505 is 5056211126.

It is a happy number.

It is not a de Polignac number, because 6211126505 - 2²⁶ = 6144017641 is a prime.

It is a super-2 number, since 2×6211126505² = 77156184922227030050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6211126507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453680 + ... + 467169.

It is an arithmetic number, because the mean of its divisors is an integer number (497259000).

Almost surely, 2^6211126505 is an apocalyptic number.

It is an amenable number.

6211126505 is a deficient number, since it is larger than the sum of its proper divisors (1745017495).

6211126505 is a wasteful number, since it uses less digits than its factorization.

6211126505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920944.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 6211126505 is about 78810.7004473377. The cubic root of 6211126505 is about 1838.1888393657.

The spelling of 6211126505 in words is "six billion, two hundred eleven million, one hundred twenty-six thousand, five hundred five".