1156105315240 has 64 divisors (see below), whose sum is σ = 2606117483520. Its totient is φ = 461575296000.

The previous prime is 1156105315229. The next prime is 1156105315259. The reversal of 1156105315240 is 425135016511.

It is a junction number, because it is equal to n+sod(n) for n = 1156105315196 and 1156105315205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49583185 + ... + 49606495.

It is an arithmetic number, because the mean of its divisors is an integer number (40720585680).

Almost surely, 2^{1156105315240} is an apocalyptic number.

1156105315240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1156105315240 is an abundant number, since it is smaller than the sum of its proper divisors (1450012168280).

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

1156105315240 is a wasteful number, since it uses less digits than its factorization.

1156105315240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25594 (or 25590 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 1156105315240 in words is "one trillion, one hundred fifty-six billion, one hundred five million, three hundred fifteen thousand, two hundred forty".