4460661115649 has 4 divisors (see below), whose sum is σ = 4463436886464. Its totient is φ = 4457885344836.

The previous prime is 4460661115639. The next prime is 4460661115723. The reversal of 4460661115649 is 9465111660644.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4460661115649 - 2⁴ = 4460661115633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4460661115649.

It is not an unprimeable number, because it can be changed into a prime (4460661115609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387882997 + ... + 1387886210.

It is an arithmetic number, because the mean of its divisors is an integer number (1115859221616).

Almost surely, 2^{4460661115649} is an apocalyptic number.

It is an amenable number.

4460661115649 is a deficient number, since it is larger than the sum of its proper divisors (2775770815).

4460661115649 is a wasteful number, since it uses less digits than its factorization.

4460661115649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775770814.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 4460661115649 in words is "four trillion, four hundred sixty billion, six hundred sixty-one million, one hundred fifteen thousand, six hundred forty-nine".