1156555464 has 16 divisors (see below), whose sum is σ = 2891388720. Its totient is φ = 385518480.

The previous prime is 1156555397. The next prime is 1156555481. The reversal of 1156555464 is 4645556511.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24094882 + ... + 24094929.

It is an arithmetic number, because the mean of its divisors is an integer number (180711795).

Almost surely, 2^1156555464 is an apocalyptic number.

It is an amenable number.

1156555464 is an abundant number, since it is smaller than the sum of its proper divisors (1734833256).

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

1156555464 is a wasteful number, since it uses less digits than its factorization.

1156555464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48189820 (or 48189816 counting only the distinct ones).

The product of its digits is 360000, while the sum is 42.

The square root of 1156555464 is about 34008.1676072087. The cubic root of 1156555464 is about 1049.6765334686.

The spelling of 1156555464 in words is "one billion, one hundred fifty-six million, five hundred fifty-five thousand, four hundred sixty-four".