354220471073655 has 12 divisors (see below), whose sum is σ = 613982149861080. Its totient is φ = 188917584572592.

The previous prime is 354220471073647. The next prime is 354220471073657. The reversal of 354220471073655 is 556370174022453.

354220471073655 is a `hidden beast` number, since 3 + 5 + 4 + 2 + 204 + 71 + 0 + 7 + 365 + 5 = 666.

It is not a de Polignac number, because 354220471073655 - 2³ = 354220471073647 is a prime.

It is a super-3 number, since 3×354220471073655³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354220471073657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3935783011885 + ... + 3935783011974.

It is an arithmetic number, because the mean of its divisors is an integer number (51165179155090).

Almost surely, 2^{354220471073655} is an apocalyptic number.

354220471073655 is a deficient number, since it is larger than the sum of its proper divisors (259761678787425).

354220471073655 is a wasteful number, since it uses less digits than its factorization.

354220471073655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7871566023870 (or 7871566023867 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 54.

The spelling of 354220471073655 in words is "three hundred fifty-four trillion, two hundred twenty billion, four hundred seventy-one million, seventy-three thousand, six hundred fifty-five".