1158970550550 has 24 divisors (see below), whose sum is σ = 2874246965736. Its totient is φ = 309058813440.

The previous prime is 1158970550533. The next prime is 1158970550557. The reversal of 1158970550550 is 550550798511.

It is a junction number, because it is equal to n+sod(n) for n = 1158970550493 and 1158970550502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158970550557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3863235019 + ... + 3863235318.

It is an arithmetic number, because the mean of its divisors is an integer number (119760290239).

Almost surely, 2^{1158970550550} is an apocalyptic number.

1158970550550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1158970550550 is an abundant number, since it is smaller than the sum of its proper divisors (1715276415186).

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

1158970550550 is a wasteful number, since it uses less digits than its factorization.

1158970550550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726470352 (or 7726470347 counting only the distinct ones).

The product of its (nonzero) digits is 1575000, while the sum is 51.

The spelling of 1158970550550 in words is "one trillion, one hundred fifty-eight billion, nine hundred seventy million, five hundred fifty thousand, five hundred fifty".