1161330770 has 16 divisors (see below), whose sum is σ = 2090852568. Its totient is φ = 464430720.

The previous prime is 1161330761. The next prime is 1161330791. The reversal of 1161330770 is 770331611.

It can be written as a sum of positive squares in 4 ways, for example, as 201384481 + 959946289 = 14191^2 + 30983^2 .

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, 50102 + ... + 69518.

Almost surely, 2^1161330770 is an apocalyptic number.

1161330770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161330770 is a deficient number, since it is larger than the sum of its proper divisors (929521798).

1161330770 is a wasteful number, since it uses less digits than its factorization.

1161330770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25405.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 1161330770 is about 34078.3035082441. The cubic root of 1161330770 is about 1051.1192207813.

The spelling of 1161330770 in words is "one billion, one hundred sixty-one million, three hundred thirty thousand, seven hundred seventy".