2031661055 has 8 divisors (see below), whose sum is σ = 2438247744. Its totient is φ = 1625159200.

The previous prime is 2031661039. The next prime is 2031661081. The reversal of 2031661055 is 5501661302.

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

It is not a de Polignac number, because 2031661055 - 2⁴ = 2031661039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59210 + ... + 87000.

It is an arithmetic number, because the mean of its divisors is an integer number (304780968).

Almost surely, 2^2031661055 is an apocalyptic number.

2031661055 is a deficient number, since it is larger than the sum of its proper divisors (406586689).

2031661055 is a wasteful number, since it uses less digits than its factorization.

2031661055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42417.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 2031661055 is about 45073.9509583972. The cubic root of 2031661055 is about 1266.5346775751.

The spelling of 2031661055 in words is "two billion, thirty-one million, six hundred sixty-one thousand, fifty-five".