1156561230572 has 48 divisors (see below), whose sum is σ = 2262855982464. Its totient is φ = 512682240000.

The previous prime is 1156561230551. The next prime is 1156561230577. The reversal of 1156561230572 is 2750321656511.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (1156561230577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735947 + ... + 1689597.

It is an arithmetic number, because the mean of its divisors is an integer number (47142832968).

Almost surely, 2^{1156561230572} is an apocalyptic number.

It is an amenable number.

1156561230572 is a deficient number, since it is larger than the sum of its proper divisors (1106294751892).

1156561230572 is a wasteful number, since it uses less digits than its factorization.

1156561230572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954350 (or 954348 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 1156561230572 in words is "one trillion, one hundred fifty-six billion, five hundred sixty-one million, two hundred thirty thousand, five hundred seventy-two".