6211261066 has 16 divisors (see below), whose sum is σ = 9866763144. Its totient is φ = 2922407424.

The previous prime is 6211261051. The next prime is 6211261079. The reversal of 6211261066 is 6601621126.

It can be written as a sum of positive squares in 4 ways, for example, as 5986890625 + 224370441 = 77375^2 + 14979^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217516 + ... + 244408.

Almost surely, 2^6211261066 is an apocalyptic number.

6211261066 is a deficient number, since it is larger than the sum of its proper divisors (3655502078).

6211261066 is a wasteful number, since it uses less digits than its factorization.

6211261066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33705.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 6211261066 is about 78811.5541402401. The cubic root of 6211261066 is about 1838.2021137555.

The spelling of 6211261066 in words is "six billion, two hundred eleven million, two hundred sixty-one thousand, sixty-six".