1151361566 has 4 divisors (see below), whose sum is σ = 1727042352. Its totient is φ = 575680782.

The previous prime is 1151361539. The next prime is 1151361571. The reversal of 1151361566 is 6651631511.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287840390 + ... + 287840393.

It is an arithmetic number, because the mean of its divisors is an integer number (431760588).

Almost surely, 2^1151361566 is an apocalyptic number.

1151361566 is a deficient number, since it is larger than the sum of its proper divisors (575680786).

1151361566 is an equidigital number, since it uses as much as digits as its factorization.

1151361566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575680785.

The product of its digits is 16200, while the sum is 35.

The square root of 1151361566 is about 33931.7191724793. The cubic root of 1151361566 is about 1048.1028679157.

The spelling of 1151361566 in words is "one billion, one hundred fifty-one million, three hundred sixty-one thousand, five hundred sixty-six".