1155456064 has 63 divisors (see below), whose sum is σ = 2671603623. Its totient is φ = 494379648.

The previous prime is 1155456041. The next prime is 1155456073. The reversal of 1155456064 is 4606545511.

The square root of 1155456064 is 33992.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1903249 + ... + 1903855.

Almost surely, 2^1155456064 is an apocalyptic number.

1155456064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1155456064 is the 33992-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155456064

1155456064 is an abundant number, since it is smaller than the sum of its proper divisors (1516147559).

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

1155456064 is an frugal number, since it uses more digits than its factorization.

1155456064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The cubic root of 1155456064 is about 1049.3438270625.

The spelling of 1155456064 in words is "one billion, one hundred fifty-five million, four hundred fifty-six thousand, sixty-four".