135440554201455 has 32 divisors (see below), whose sum is σ = 235048628945088. Its totient is φ = 66327655424000.

The previous prime is 135440554201441. The next prime is 135440554201499. The reversal of 135440554201455 is 554102455044531.

It is not a de Polignac number, because 135440554201455 - 2⁴ = 135440554201439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6477299646 + ... + 6477320555.

It is an arithmetic number, because the mean of its divisors is an integer number (7345269654534).

Almost surely, 2^{135440554201455} is an apocalyptic number.

135440554201455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135440554201455 is a deficient number, since it is larger than the sum of its proper divisors (99608074743633).

135440554201455 is a wasteful number, since it uses less digits than its factorization.

135440554201455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12954620267.

The product of its (nonzero) digits is 4800000, while the sum is 48.

The spelling of 135440554201455 in words is "one hundred thirty-five trillion, four hundred forty billion, five hundred fifty-four million, two hundred one thousand, four hundred fifty-five".