145205554165 has 8 divisors (see below), whose sum is σ = 199139045760. Its totient is φ = 99569522832.

The previous prime is 145205554147. The next prime is 145205554171. The reversal of 145205554165 is 561455502541.

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 145205554165 - 2⁷ = 145205554037 is a prime.

It is a congruent 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, 2074365025 + ... + 2074365094.

It is an arithmetic number, because the mean of its divisors is an integer number (24892380720).

Almost surely, 2^145205554165 is an apocalyptic number.

It is an amenable number.

145205554165 is a deficient number, since it is larger than the sum of its proper divisors (53933491595).

145205554165 is an equidigital number, since it uses as much as digits as its factorization.

145205554165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148730131.

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 145205554165 in words is "one hundred forty-five billion, two hundred five million, five hundred fifty-four thousand, one hundred sixty-five".