13061989550 has 12 divisors (see below), whose sum is σ = 24295300656. Its totient is φ = 5224795800.

The previous prime is 13061989513. The next prime is 13061989561. The reversal of 13061989550 is 5598916031.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13061989495 and 13061989504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130619846 + ... + 130619945.

It is an arithmetic number, because the mean of its divisors is an integer number (2024608388).

Almost surely, 2^13061989550 is an apocalyptic number.

13061989550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13061989550 is a deficient number, since it is larger than the sum of its proper divisors (11233311106).

13061989550 is a wasteful number, since it uses less digits than its factorization.

13061989550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261239803 (or 261239798 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 47.

The spelling of 13061989550 in words is "thirteen billion, sixty-one million, nine hundred eighty-nine thousand, five hundred fifty".