154996817473 has 4 divisors (see below), whose sum is σ = 155333036628. Its totient is φ = 154660598320.

The previous prime is 154996817429. The next prime is 154996817483. The reversal of 154996817473 is 374718699451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90281019024 + 64715798449 = 300468^2 + 254393^2 .

It is a cyclic number.

It is not a de Polignac number, because 154996817473 - 2¹³ = 154996809281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154996817483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168108886 + ... + 168109807.

It is an arithmetic number, because the mean of its divisors is an integer number (38833259157).

Almost surely, 2^154996817473 is an apocalyptic number.

It is an amenable number.

154996817473 is a deficient number, since it is larger than the sum of its proper divisors (336219155).

154996817473 is an equidigital number, since it uses as much as digits as its factorization.

154996817473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336219154.

The product of its digits is 45722880, while the sum is 64.

The spelling of 154996817473 in words is "one hundred fifty-four billion, nine hundred ninety-six million, eight hundred seventeen thousand, four hundred seventy-three".