155084905201 has 4 divisors (see below), whose sum is σ = 155085694192. Its totient is φ = 155084116212.

The previous prime is 155084905181. The next prime is 155084905207. The reversal of 155084905201 is 102509480551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 102509480551 = 23 ⋅4456933937.

It is a cyclic number.

It is not a de Polignac number, because 155084905201 - 2¹⁷ = 155084774129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155084905207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162346 + ... + 580108.

It is an arithmetic number, because the mean of its divisors is an integer number (38771423548).

Almost surely, 2^155084905201 is an apocalyptic number.

It is an amenable number.

155084905201 is a deficient number, since it is larger than the sum of its proper divisors (788991).

155084905201 is an equidigital number, since it uses as much as digits as its factorization.

155084905201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788990.

The product of its (nonzero) digits is 72000, while the sum is 40.

The spelling of 155084905201 in words is "one hundred fifty-five billion, eighty-four million, nine hundred five thousand, two hundred one".