1156552266 has 8 divisors (see below), whose sum is σ = 2313104544. Its totient is φ = 385517420.

The previous prime is 1156552261. The next prime is 1156552303. The reversal of 1156552266 is 6622556511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1156552266 is an admirable number.

It is a super-2 number, since 2×1156552266² = 2675226287979469512, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1156552261) 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, 96379350 + ... + 96379361.

It is an arithmetic number, because the mean of its divisors is an integer number (289138068).

Almost surely, 2^1156552266 is an apocalyptic number.

1156552266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1156552266 is a wasteful number, since it uses less digits than its factorization.

1156552266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192758716.

The product of its digits is 108000, while the sum is 39.

The square root of 1156552266 is about 34008.1205890593. The cubic root of 1156552266 is about 1049.6755659783.

The spelling of 1156552266 in words is "one billion, one hundred fifty-six million, five hundred fifty-two thousand, two hundred sixty-six".