1155858061456 has 40 divisors (see below), whose sum is σ = 2565782636544. Its totient is φ = 494132390400.

The previous prime is 1155858061403. The next prime is 1155858061513. The reversal of 1155858061456 is 6541608585511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1155858061397 and 1155858061406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12823120 + ... + 12912943.

Almost surely, 2^{1155858061456} is an apocalyptic number.

1155858061456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1155858061456 is an abundant number, since it is smaller than the sum of its proper divisors (1409924575088).

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

1155858061456 is a wasteful number, since it uses less digits than its factorization.

1155858061456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25736479 (or 25736473 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 55.

The spelling of 1155858061456 in words is "one trillion, one hundred fifty-five billion, eight hundred fifty-eight million, sixty-one thousand, four hundred fifty-six".