155015241251 has 16 divisors (see below), whose sum is σ = 176773572864. Its totient is φ = 134663122944.

The previous prime is 155015241229. The next prime is 155015241259. The reversal of 155015241251 is 152142510551.

It is a cyclic number.

It is not a de Polignac number, because 155015241251 - 2¹⁴ = 155015224867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155015241259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4161230 + ... + 4198316.

It is an arithmetic number, because the mean of its divisors is an integer number (11048348304).

Almost surely, 2^155015241251 is an apocalyptic number.

155015241251 is a deficient number, since it is larger than the sum of its proper divisors (21758331613).

155015241251 is a wasteful number, since it uses less digits than its factorization.

155015241251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56030.

The product of its (nonzero) digits is 10000, while the sum is 32.

The spelling of 155015241251 in words is "one hundred fifty-five billion, fifteen million, two hundred forty-one thousand, two hundred fifty-one".