2400706661 has 8 divisors (see below), whose sum is σ = 2466362304. Its totient is φ = 2335389280.

The previous prime is 2400706657. The next prime is 2400706687. The reversal of 2400706661 is 1666070042.

2400706661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2400706661 - 2² = 2400706657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400706621) 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, 70145 + ... + 98598.

It is an arithmetic number, because the mean of its divisors is an integer number (308295288).

Almost surely, 2^2400706661 is an apocalyptic number.

It is an amenable number.

2400706661 is a deficient number, since it is larger than the sum of its proper divisors (65655643).

2400706661 is a wasteful number, since it uses less digits than its factorization.

2400706661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169131.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2400706661 is about 48997.0066534681. The cubic root of 2400706661 is about 1338.9972934243.

The spelling of 2400706661 in words is "two billion, four hundred million, seven hundred six thousand, six hundred sixty-one".