1266761622 has 24 divisors (see below), whose sum is σ = 2947160376. Its totient is φ = 361931808.

The previous prime is 1266761621. The next prime is 1266761651. The reversal of 1266761622 is 2261676621.

1266761622 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266761621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2154063 + ... + 2154650.

It is an arithmetic number, because the mean of its divisors is an integer number (122798349).

Almost surely, 2^1266761622 is an apocalyptic number.

1266761622 is an abundant number, since it is smaller than the sum of its proper divisors (1680398754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1266761622 is a wasteful number, since it uses less digits than its factorization.

1266761622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4308732 (or 4308725 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 1266761622 is about 35591.5948223734. The cubic root of 1266761622 is about 1082.0108917260.

The spelling of 1266761622 in words is "one billion, two hundred sixty-six million, seven hundred sixty-one thousand, six hundred twenty-two".