13555779023578 has 8 divisors (see below), whose sum is σ = 22182183856800. Its totient is φ = 6161717737980.

The previous prime is 13555779023561. The next prime is 13555779023653. The reversal of 13555779023578 is 87532097755531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308085886878 + ... + 308085886921.

It is an arithmetic number, because the mean of its divisors is an integer number (2772772982100).

Almost surely, 2^{13555779023578} is an apocalyptic number.

13555779023578 is a deficient number, since it is larger than the sum of its proper divisors (8626404833222).

13555779023578 is a wasteful number, since it uses less digits than its factorization.

13555779023578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616171773812.

The product of its (nonzero) digits is 277830000, while the sum is 67.

The spelling of 13555779023578 in words is "thirteen trillion, five hundred fifty-five billion, seven hundred seventy-nine million, twenty-three thousand, five hundred seventy-eight".