120660155 has 64 divisors (see below), whose sum is σ = 190356480. Its totient is φ = 71232000.

The previous prime is 120660149. The next prime is 120660161. The reversal of 120660155 is 551066021.

It is an interprime number because it is at equal distance from previous prime (120660149) and next prime (120660161).

It is not a de Polignac number, because 120660155 - 2¹⁰ = 120659131 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1127612 + ... + 1127718.

It is an arithmetic number, because the mean of its divisors is an integer number (2974320).

Almost surely, 2^120660155 is an apocalyptic number.

120660155 is a deficient number, since it is larger than the sum of its proper divisors (69696325).

120660155 is a wasteful number, since it uses less digits than its factorization.

120660155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 120660155 is about 10984.5416381386. The cubic root of 120660155 is about 494.1452514243.

The spelling of 120660155 in words is "one hundred twenty million, six hundred sixty thousand, one hundred fifty-five".