155011054242261 has 8 divisors (see below), whose sum is σ = 236207320750144. Its totient is φ = 88577745281280.

The previous prime is 155011054242179. The next prime is 155011054242277. The reversal of 155011054242261 is 162242450110551.

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

It is not a de Polignac number, because 155011054242261 - 2¹⁷ = 155011054111189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155011054242281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3690739386700 + ... + 3690739386741.

It is an arithmetic number, because the mean of its divisors is an integer number (29525915093768).

Almost surely, 2^{155011054242261} is an apocalyptic number.

It is an amenable number.

155011054242261 is a deficient number, since it is larger than the sum of its proper divisors (81196266507883).

155011054242261 is an equidigital number, since it uses as much as digits as its factorization.

155011054242261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381478773451.

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 155011054242261 in words is "one hundred fifty-five trillion, eleven billion, fifty-four million, two hundred forty-two thousand, two hundred sixty-one".