154921575345 has 32 divisors (see below), whose sum is σ = 249090671232. Its totient is φ = 82219894272.

The previous prime is 154921575343. The next prime is 154921575379. The reversal of 154921575345 is 543575129451.

It is not a de Polignac number, because 154921575345 - 2¹ = 154921575343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154921575343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6093079 + ... + 6118451.

It is an arithmetic number, because the mean of its divisors is an integer number (7784083476).

Almost surely, 2^154921575345 is an apocalyptic number.

154921575345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154921575345 is a deficient number, since it is larger than the sum of its proper divisors (94169095887).

154921575345 is a wasteful number, since it uses less digits than its factorization.

154921575345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27361.

The product of its digits is 3780000, while the sum is 51.

The spelling of 154921575345 in words is "one hundred fifty-four billion, nine hundred twenty-one million, five hundred seventy-five thousand, three hundred forty-five".