2080155181 has 8 divisors (see below), whose sum is σ = 2317414680. Its totient is φ = 1853931072.

The previous prime is 2080155151. The next prime is 2080155191. The reversal of 2080155181 is 1815510802.

It can be written as a sum of positive squares in 4 ways, for example, as 32592681 + 2047562500 = 5709^2 + 45250^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2080155181 - 2⁷ = 2080155053 is a prime.

It is a super-2 number, since 2×2080155181² = 8654091154082285522, which contains 22 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 (2080155151) 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, 2758450 + ... + 2759203.

It is an arithmetic number, because the mean of its divisors is an integer number (289676835).

Almost surely, 2^2080155181 is an apocalyptic number.

It is an amenable number.

2080155181 is a deficient number, since it is larger than the sum of its proper divisors (237259499).

2080155181 is a wasteful number, since it uses less digits than its factorization.

2080155181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517695.

The product of its (nonzero) digits is 3200, while the sum is 31.

The square root of 2080155181 is about 45608.7182564913. The cubic root of 2080155181 is about 1276.5326039633.

Adding to 2080155181 its reverse (1815510802), we get a palindrome (3895665983).

The spelling of 2080155181 in words is "two billion, eighty million, one hundred fifty-five thousand, one hundred eighty-one".