4445020155 has 16 divisors (see below), whose sum is σ = 7137169920. Its totient is φ = 2362298208.

The previous prime is 4445020133. The next prime is 4445020169. The reversal of 4445020155 is 5510205444.

It is not a de Polignac number, because 4445020155 - 2¹⁵ = 4444987387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519315 + ... + 527804.

It is an arithmetic number, because the mean of its divisors is an integer number (446073120).

Almost surely, 2^4445020155 is an apocalyptic number.

4445020155 is a deficient number, since it is larger than the sum of its proper divisors (2692149765).

4445020155 is a wasteful number, since it uses less digits than its factorization.

4445020155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047410.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 4445020155 is about 66670.9843560150. The cubic root of 4445020155 is about 1644.2123710381.

Adding to 4445020155 its reverse (5510205444), we get a palindrome (9955225599).

The spelling of 4445020155 in words is "four billion, four hundred forty-five million, twenty thousand, one hundred fifty-five".