1155103929490 has 128 divisors (see below), whose sum is σ = 2527466872320. Its totient is φ = 372330694656.

The previous prime is 1155103929481. The next prime is 1155103929523. The reversal of 1155103929490 is 949293015511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 569857857 + ... + 569859883.

It is an arithmetic number, because the mean of its divisors is an integer number (19745834940).

Almost surely, 2^{1155103929490} is an apocalyptic number.

1155103929490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155103929490 is an abundant number, since it is smaller than the sum of its proper divisors (1372362942830).

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

1155103929490 is a wasteful number, since it uses less digits than its factorization.

1155103929490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749 (or 3715 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 49.

The spelling of 1155103929490 in words is "one trillion, one hundred fifty-five billion, one hundred three million, nine hundred twenty-nine thousand, four hundred ninety".