1256766060 has 48 divisors (see below), whose sum is σ = 3838851072. Its totient is φ = 304670400.

The previous prime is 1256766059. The next prime is 1256766067. The reversal of 1256766060 is 606676521.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1256766067) 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, 951436 + ... + 952755.

It is an arithmetic number, because the mean of its divisors is an integer number (79976064).

Almost surely, 2^1256766060 is an apocalyptic number.

1256766060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1256766060 is an abundant number, since it is smaller than the sum of its proper divisors (2582085012).

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

1256766060 is a wasteful number, since it uses less digits than its factorization.

1256766060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904214 (or 1904212 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1256766060 is about 35450.8964625720. The cubic root of 1256766060 is about 1079.1574532953.

The spelling of 1256766060 in words is "one billion, two hundred fifty-six million, seven hundred sixty-six thousand, sixty".