1047766660 has 12 divisors (see below), whose sum is σ = 2200310028. Its totient is φ = 419106656.

The previous prime is 1047766649. The next prime is 1047766669. The reversal of 1047766660 is 666677401.

It can be written as a sum of positive squares in 2 ways, for example, as 175509504 + 872257156 = 13248^2 + 29534^2 .

It is not an unprimeable number, because it can be changed into a prime (1047766669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26194147 + ... + 26194186.

It is an arithmetic number, because the mean of its divisors is an integer number (183359169).

Almost surely, 2^1047766660 is an apocalyptic number.

1047766660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1047766660 is an abundant number, since it is smaller than the sum of its proper divisors (1152543368).

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

1047766660 is a wasteful number, since it uses less digits than its factorization.

1047766660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52388342 (or 52388340 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 1047766660 is about 32369.2239635120. The cubic root of 1047766660 is about 1015.6752235014.

The spelling of 1047766660 in words is "one billion, forty-seven million, seven hundred sixty-six thousand, six hundred sixty".