158164555 has 8 divisors (see below), whose sum is σ = 192630672. Its totient is φ = 124642848.

The previous prime is 158164519. The next prime is 158164571. The reversal of 158164555 is 555461851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158164555 - 2⁹ = 158164043 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235732 + ... + 236401.

It is an arithmetic number, because the mean of its divisors is an integer number (24078834).

Almost surely, 2^158164555 is an apocalyptic number.

158164555 is a deficient number, since it is larger than the sum of its proper divisors (34466117).

158164555 is an equidigital number, since it uses as much as digits as its factorization.

158164555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472205.

The product of its digits is 120000, while the sum is 40.

The square root of 158164555 is about 12576.3490330064. The cubic root of 158164555 is about 540.7996326482.

The spelling of 158164555 in words is "one hundred fifty-eight million, one hundred sixty-four thousand, five hundred fifty-five".