135366257758557 has 128 divisors (see below), whose sum is σ = 222968022810624. Its totient is φ = 71299832905728.

The previous prime is 135366257758499. The next prime is 135366257758603. The reversal of 135366257758557 is 755857752663531.

It is not a de Polignac number, because 135366257758557 - 2¹⁵ = 135366257725789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135366257758157) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1898855568 + ... + 1898926854.

It is an arithmetic number, because the mean of its divisors is an integer number (1741937678208).

Almost surely, 2^{135366257758557} is an apocalyptic number.

135366257758557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

135366257758557 is a deficient number, since it is larger than the sum of its proper divisors (87601765052067).

135366257758557 is a wasteful number, since it uses less digits than its factorization.

135366257758557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71987.

The product of its digits is 5556600000, while the sum is 75.

The spelling of 135366257758557 in words is "one hundred thirty-five trillion, three hundred sixty-six billion, two hundred fifty-seven million, seven hundred fifty-eight thousand, five hundred fifty-seven".