2110155551 has 8 divisors (see below), whose sum is σ = 2460823200. Its totient is φ = 1808704464.

The previous prime is 2110155527. The next prime is 2110155587. The reversal of 2110155551 is 1555510112.

It is a de Polignac number, because none of the positive numbers 2^k-2110155551 is a prime.

It is a super-2 number, since 2×2110155551² = 8905512898832227202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2110155551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110155511) 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, 3075686 + ... + 3076371.

It is an arithmetic number, because the mean of its divisors is an integer number (307602900).

Almost surely, 2^2110155551 is an apocalyptic number.

2110155551 is a deficient number, since it is larger than the sum of its proper divisors (350667649).

2110155551 is an frugal number, since it uses more digits than its factorization.

2110155551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152078 (or 6152064 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 26.

The square root of 2110155551 is about 45936.4294541925. The cubic root of 2110155551 is about 1282.6401299436.

Adding to 2110155551 its reverse (1555510112), we get a palindrome (3665665663).

The spelling of 2110155551 in words is "two billion, one hundred ten million, one hundred fifty-five thousand, five hundred fifty-one".