1157206550000 has 120 divisors (see below), whose sum is σ = 2870787289104. Its totient is φ = 451592000000.

The previous prime is 1157206549987. The next prime is 1157206550069. The reversal of 1157206550000 is 556027511.

It is a congruent number.

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, 1767755 + ... + 2332245.

Almost surely, 2^{1157206550000} is an apocalyptic number.

1157206550000 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 1157206550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1435393644552).

1157206550000 is an abundant number, since it is smaller than the sum of its proper divisors (1713580739104).

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

1157206550000 is an frugal number, since it uses more digits than its factorization.

1157206550000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564565 (or 564539 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 32.

The spelling of 1157206550000 in words is "one trillion, one hundred fifty-seven billion, two hundred six million, five hundred fifty thousand".