2660420042 has 16 divisors (see below), whose sum is σ = 4561401600. Its totient is φ = 1140009648.

The previous prime is 2660420041. The next prime is 2660420069. The reversal of 2660420042 is 2400240662.

2660420042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2660419993 and 2660420020.

It is not an unprimeable number, because it can be changed into a prime (2660420041) 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, 142388 + ... + 159984.

It is an arithmetic number, because the mean of its divisors is an integer number (285087600).

Almost surely, 2^2660420042 is an apocalyptic number.

2660420042 is a deficient number, since it is larger than the sum of its proper divisors (1900981558).

2660420042 is a wasteful number, since it uses less digits than its factorization.

2660420042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28405.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 2660420042 is about 51579.2598046928. The cubic root of 2660420042 is about 1385.6389102151.

The spelling of 2660420042 in words is "two billion, six hundred sixty million, four hundred twenty thousand, forty-two".