1129097519550 has 2304 divisors, whose sum is σ = 4612312793088. Its totient is φ = 197522841600.

The previous prime is 1129097519521. The next prime is 1129097519573. The reversal of 1129097519550 is 559157909211.

1129097519550 is a `hidden beast` number, since 1 + 1 + 2 + 9 + 0 + 9 + 75 + 19 + 550 = 666.

It is a super-2 number, since 2×1129097519550² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 1151 ways as a sum of consecutive naturals, for example, 8890531587 + ... + 8890531713.

It is an arithmetic number, because the mean of its divisors is an integer number (2001871872).

Almost surely, 2^{1129097519550} is an apocalyptic number.

1129097519550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1129097519550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2306156396544).

1129097519550 is an abundant number, since it is smaller than the sum of its proper divisors (3483215273538).

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

1129097519550 is a wasteful number, since it uses less digits than its factorization.

1129097519550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 1275750, while the sum is 54.

The spelling of 1129097519550 in words is "one trillion, one hundred twenty-nine billion, ninety-seven million, five hundred nineteen thousand, five hundred fifty".