120242550541155 has 16 divisors (see below), whose sum is σ = 219872092418304. Its totient is φ = 54968023104480.

The previous prime is 120242550541123. The next prime is 120242550541177. The reversal of 120242550541155 is 551145055242021.

It is not a de Polignac number, because 120242550541155 - 2⁵ = 120242550541123 is a prime.

It is a super-5 number, since 5×120242550541155⁵ (a number of 72 digits) contains 55555 as substring.

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, 572583573901 + ... + 572583574110.

It is an arithmetic number, because the mean of its divisors is an integer number (13742005776144).

Almost surely, 2^{120242550541155} is an apocalyptic number.

120242550541155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120242550541155 is a deficient number, since it is larger than the sum of its proper divisors (99629541877149).

120242550541155 is a wasteful number, since it uses less digits than its factorization.

120242550541155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145167148026.

The product of its (nonzero) digits is 400000, while the sum is 42.

The spelling of 120242550541155 in words is "one hundred twenty trillion, two hundred forty-two billion, five hundred fifty million, five hundred forty-one thousand, one hundred fifty-five".