155605065003201 has 32 divisors (see below), whose sum is σ = 227154500997120. Its totient is φ = 93965094305600.

The previous prime is 155605065003139. The next prime is 155605065003281. The reversal of 155605065003201 is 102300560506551.

It is a cyclic number.

It is not a de Polignac number, because 155605065003201 - 2²⁶ = 155604997894337 is a prime.

It is a super-2 number, since 2×155605065003201² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155605065003201.

It is not an unprimeable number, because it can be changed into a prime (155605065003281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2784406 + ... + 17859536.

It is an arithmetic number, because the mean of its divisors is an integer number (7098578156160).

Almost surely, 2^{155605065003201} is an apocalyptic number.

155605065003201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

155605065003201 is a deficient number, since it is larger than the sum of its proper divisors (71549435993919).

155605065003201 is a wasteful number, since it uses less digits than its factorization.

155605065003201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15076277.

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 155605065003201 in words is "one hundred fifty-five trillion, six hundred five billion, sixty-five million, three thousand, two hundred one".