1266227061 has 16 divisors (see below), whose sum is σ = 1891564608. Its totient is φ = 746668800.

The previous prime is 1266227059. The next prime is 1266227113. The reversal of 1266227061 is 1607226621.

It is not a de Polignac number, because 1266227061 - 2¹ = 1266227059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266227041) 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, 517300 + ... + 519741.

It is an arithmetic number, because the mean of its divisors is an integer number (118222788).

Almost surely, 2^1266227061 is an apocalyptic number.

1266227061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1266227061 is a deficient number, since it is larger than the sum of its proper divisors (625337547).

1266227061 is a wasteful number, since it uses less digits than its factorization.

1266227061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037092.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1266227061 is about 35584.0843777102. The cubic root of 1266227061 is about 1081.8586709784.

The spelling of 1266227061 in words is "one billion, two hundred sixty-six million, two hundred twenty-seven thousand, sixty-one".