354220571073655 has 48 divisors (see below), whose sum is σ = 528547917306240. Its totient is φ = 225282718627200.

The previous prime is 354220571073613. The next prime is 354220571073659. The reversal of 354220571073655 is 556370175022453.

It is not a de Polignac number, because 354220571073655 - 2¹³ = 354220571065463 is a prime.

It is a super-3 number, since 3×354220571073655³ (a number of 45 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a junction number, because it is equal to n+sod(n) for n = 354220571073596 and 354220571073605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354220571073659) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1002684501 + ... + 1003037710.

It is an arithmetic number, because the mean of its divisors is an integer number (11011414943880).

Almost surely, 2^{354220571073655} is an apocalyptic number.

354220571073655 is a deficient number, since it is larger than the sum of its proper divisors (174327346232585).

354220571073655 is a wasteful number, since it uses less digits than its factorization.

354220571073655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005722272 (or 2005722259 counting only the distinct ones).

The product of its (nonzero) digits is 26460000, while the sum is 55.

The spelling of 354220571073655 in words is "three hundred fifty-four trillion, two hundred twenty billion, five hundred seventy-one million, seventy-three thousand, six hundred fifty-five".