1155338530830 has 96 divisors (see below), whose sum is σ = 3287635198848. Its totient is φ = 279169675200.

The previous prime is 1155338530817. The next prime is 1155338530849. The reversal of 1155338530830 is 380358335511.

1155338530830 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 3 + 38 + 530 + 83 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1596736 + ... + 2204595.

It is an arithmetic number, because the mean of its divisors is an integer number (34246199988).

Almost surely, 2^{1155338530830} is an apocalyptic number.

1155338530830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155338530830 is an abundant number, since it is smaller than the sum of its proper divisors (2132296668018).

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

1155338530830 is a wasteful number, since it uses less digits than its factorization.

1155338530830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801662 (or 3801659 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 1155338530830 in words is "one trillion, one hundred fifty-five billion, three hundred thirty-eight million, five hundred thirty thousand, eight hundred thirty".