1156231585620 has 240 divisors, whose sum is σ = 3829407341760. Its totient is φ = 291231230976.

The previous prime is 1156231585519. The next prime is 1156231585637. The reversal of 1156231585620 is 265851326511.

1156231585620 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 2 + 3 + 1 + 585 + 62 + 0 = 666.

It is a super-3 number, since 3×1156231585620³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10317127 + ... + 10428593.

It is an arithmetic number, because the mean of its divisors is an integer number (15955863924).

Almost surely, 2^{1156231585620} is an apocalyptic number.

1156231585620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1156231585620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1914703670880).

1156231585620 is an abundant number, since it is smaller than the sum of its proper divisors (2673175756140).

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

1156231585620 is a wasteful number, since it uses less digits than its factorization.

1156231585620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111844 (or 111833 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The spelling of 1156231585620 in words is "one trillion, one hundred fifty-six billion, two hundred thirty-one million, five hundred eighty-five thousand, six hundred twenty".