34156553221 has 16 divisors (see below), whose sum is σ = 42293522304. Its totient is φ = 26914051584.

The previous prime is 34156553177. The next prime is 34156553239. The reversal of 34156553221 is 12235565143.

It is not a de Polignac number, because 34156553221 - 2²⁷ = 34022335493 is a prime.

It is a super-4 number, since 4×34156553221⁴ (a number of 43 digits) contains 4444 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 (34156550221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3332440 + ... + 3342673.

It is an arithmetic number, because the mean of its divisors is an integer number (2643345144).

Almost surely, 2^34156553221 is an apocalyptic number.

It is an amenable number.

34156553221 is a deficient number, since it is larger than the sum of its proper divisors (8136969083).

34156553221 is a wasteful number, since it uses less digits than its factorization.

34156553221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6675180.

The product of its digits is 108000, while the sum is 37.

The spelling of 34156553221 in words is "thirty-four billion, one hundred fifty-six million, five hundred fifty-three thousand, two hundred twenty-one".