1162666380 has 48 divisors (see below), whose sum is σ = 3446966880. Its totient is φ = 291806208.

The previous prime is 1162666333. The next prime is 1162666381. The reversal of 1162666380 is 836662611.

It is a super-2 number, since 2×1162666380² = 2703586222364608800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1162666381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 568915 + ... + 570954.

It is an arithmetic number, because the mean of its divisors is an integer number (71811810).

Almost surely, 2^1162666380 is an apocalyptic number.

1162666380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1162666380 is an abundant number, since it is smaller than the sum of its proper divisors (2284300500).

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

1162666380 is a wasteful number, since it uses less digits than its factorization.

1162666380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139898 (or 1139896 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1162666380 is about 34097.8940698689. The cubic root of 1162666380 is about 1051.5220194597.

The spelling of 1162666380 in words is "one billion, one hundred sixty-two million, six hundred sixty-six thousand, three hundred eighty".