154353221040455 has 8 divisors (see below), whose sum is σ = 185225378298912. Its totient is φ = 123481568132128.

The previous prime is 154353221040413. The next prime is 154353221040457. The reversal of 154353221040455 is 554040122353451.

It is a happy number.

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 154353221040455 - 2¹⁶ = 154353220974919 is a prime.

It is a super-2 number, since 2×154353221040455² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154353221040457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125413907 + ... + 126638676.

It is an arithmetic number, because the mean of its divisors is an integer number (23153172287364).

Almost surely, 2^{154353221040455} is an apocalyptic number.

154353221040455 is a deficient number, since it is larger than the sum of its proper divisors (30872157258457).

154353221040455 is a wasteful number, since it uses less digits than its factorization.

154353221040455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252175065.

The product of its (nonzero) digits is 1440000, while the sum is 44.

The spelling of 154353221040455 in words is "one hundred fifty-four trillion, three hundred fifty-three billion, two hundred twenty-one million, forty thousand, four hundred fifty-five".