1156583163372 has 72 divisors (see below), whose sum is σ = 3380781576816. Its totient is φ = 305032920192.

The previous prime is 1156583163341. The next prime is 1156583163433. The reversal of 1156583163372 is 2733613856511.

It is a super-2 number, since 2×1156583163372² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75645363 + ... + 75660650.

It is an arithmetic number, because the mean of its divisors is an integer number (46955299678).

Almost surely, 2^{1156583163372} is an apocalyptic number.

1156583163372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1156583163372 is an abundant number, since it is smaller than the sum of its proper divisors (2224198413444).

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

1156583163372 is a wasteful number, since it uses less digits than its factorization.

1156583163372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151306047 (or 151306038 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 51.

The spelling of 1156583163372 in words is "one trillion, one hundred fifty-six billion, five hundred eighty-three million, one hundred sixty-three thousand, three hundred seventy-two".