250120142155 has 16 divisors (see below), whose sum is σ = 324643697280. Its totient is φ = 183897525888.

The previous prime is 250120142131. The next prime is 250120142189. The reversal of 250120142155 is 551241021052.

It is a cyclic number.

It is not a de Polignac number, because 250120142155 - 2⁹ = 250120141643 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8386867 + ... + 8416636.

It is an arithmetic number, because the mean of its divisors is an integer number (20290231080).

Almost surely, 2^250120142155 is an apocalyptic number.

250120142155 is a deficient number, since it is larger than the sum of its proper divisors (74523555125).

250120142155 is a wasteful number, since it uses less digits than its factorization.

250120142155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16803750.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 250120142155 in words is "two hundred fifty billion, one hundred twenty million, one hundred forty-two thousand, one hundred fifty-five".