4021071155 has 8 divisors (see below), whose sum is σ = 4893247584. Its totient is φ = 3171548800.

The previous prime is 4021071143. The next prime is 4021071157. The reversal of 4021071155 is 5511701204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4021071155 - 2²⁴ = 4004293939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021071157) 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, 5663126 + ... + 5663835.

It is an arithmetic number, because the mean of its divisors is an integer number (611655948).

Almost surely, 2^4021071155 is an apocalyptic number.

4021071155 is a deficient number, since it is larger than the sum of its proper divisors (872176429).

4021071155 is a wasteful number, since it uses less digits than its factorization.

4021071155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11327037.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 4021071155 is about 63411.9165062845. The cubic root of 4021071155 is about 1590.1835362939.

Adding to 4021071155 its reverse (5511701204), we get a palindrome (9532772359).

The spelling of 4021071155 in words is "four billion, twenty-one million, seventy-one thousand, one hundred fifty-five".