1156536044 has 48 divisors (see below), whose sum is σ = 2198240352. Its totient is φ = 530399232.

The previous prime is 1156536013. The next prime is 1156536049. The reversal of 1156536044 is 4406356511.

It is a junction number, because it is equal to n+sod(n) for n = 1156535995 and 1156536013.

It is not an unprimeable number, because it can be changed into a prime (1156536049) 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, 440624 + ... + 443240.

It is an arithmetic number, because the mean of its divisors is an integer number (45796674).

Almost surely, 2^1156536044 is an apocalyptic number.

It is an amenable number.

1156536044 is a deficient number, since it is larger than the sum of its proper divisors (1041704308).

1156536044 is a wasteful number, since it uses less digits than its factorization.

1156536044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802 (or 2800 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 1156536044 is about 34007.8820863634. The cubic root of 1156536044 is about 1049.6706583123.

The spelling of 1156536044 in words is "one billion, one hundred fifty-six million, five hundred thirty-six thousand, forty-four".