120854551667 has 4 divisors (see below), whose sum is σ = 123665122680. Its totient is φ = 118043980656.

The previous prime is 120854551651. The next prime is 120854551681. The reversal of 120854551667 is 766155458021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766155458021 = 1439 ⋅532422139.

It is a cyclic number.

It is not a de Polignac number, because 120854551667 - 2⁴ = 120854551651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120854551687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1405285442 + ... + 1405285527.

It is an arithmetic number, because the mean of its divisors is an integer number (30916280670).

Almost surely, 2^120854551667 is an apocalyptic number.

120854551667 is a deficient number, since it is larger than the sum of its proper divisors (2810571013).

120854551667 is an equidigital number, since it uses as much as digits as its factorization.

120854551667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810571012.

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 120854551667 in words is "one hundred twenty billion, eight hundred fifty-four million, five hundred fifty-one thousand, six hundred sixty-seven".