2154066662 has 8 divisors (see below), whose sum is σ = 3524836392. Its totient is φ = 979121200.

The previous prime is 2154066661. The next prime is 2154066697. The reversal of 2154066662 is 2666604512.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154066661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48956039 + ... + 48956082.

It is an arithmetic number, because the mean of its divisors is an integer number (440604549).

Almost surely, 2^2154066662 is an apocalyptic number.

2154066662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2154066662 is a deficient number, since it is larger than the sum of its proper divisors (1370769730).

2154066662 is a wasteful number, since it uses less digits than its factorization.

2154066662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97912134.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 2154066662 is about 46411.9237050136. The cubic root of 2154066662 is about 1291.4761184906.

The spelling of 2154066662 in words is "two billion, one hundred fifty-four million, sixty-six thousand, six hundred sixty-two".