154220171914201 has 8 divisors (see below), whose sum is σ = 162337422451680. Its totient is φ = 146102961315168.

The previous prime is 154220171914111. The next prime is 154220171914229. The reversal of 154220171914201 is 102419171022451.

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 154220171914201 - 2¹¹ = 154220171912153 is a prime.

It is a super-2 number, since 2×154220171914201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154220171914261) 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, 1890211 + ... + 17663896.

It is an arithmetic number, because the mean of its divisors is an integer number (20292177806460).

Almost surely, 2^{154220171914201} is an apocalyptic number.

It is an amenable number.

154220171914201 is a deficient number, since it is larger than the sum of its proper divisors (8117250537479).

154220171914201 is a wasteful number, since it uses less digits than its factorization.

154220171914201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19969223.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 154220171914201 in words is "one hundred fifty-four trillion, two hundred twenty billion, one hundred seventy-one million, nine hundred fourteen thousand, two hundred one".