2664154420 has 12 divisors (see below), whose sum is σ = 5594724324. Its totient is φ = 1065661760.

The previous prime is 2664154399. The next prime is 2664154421. The reversal of 2664154420 is 244514662.

It can be written as a sum of positive squares in 2 ways, for example, as 286421776 + 2377732644 = 16924^2 + 48762^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664154421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66603841 + ... + 66603880.

It is an arithmetic number, because the mean of its divisors is an integer number (466227027).

Almost surely, 2^2664154420 is an apocalyptic number.

2664154420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2664154420 is an abundant number, since it is smaller than the sum of its proper divisors (2930569904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2664154420 is a wasteful number, since it uses less digits than its factorization.

2664154420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133207730 (or 133207728 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 2664154420 is about 51615.4474939431. The cubic root of 2664154420 is about 1386.2869382399.

The spelling of 2664154420 in words is "two billion, six hundred sixty-four million, one hundred fifty-four thousand, four hundred twenty".