60660551649 has 4 divisors (see below), whose sum is σ = 80880735536. Its totient is φ = 40440367764.

The previous prime is 60660551617. The next prime is 60660551687. The reversal of 60660551649 is 94615506606.

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 not a de Polignac number, because 60660551649 - 2⁵ = 60660551617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60660551598 and 60660551607.

It is not an unprimeable number, because it can be changed into a prime (60660551449) 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, 10110091939 + ... + 10110091944.

It is an arithmetic number, because the mean of its divisors is an integer number (20220183884).

Almost surely, 2^60660551649 is an apocalyptic number.

It is an amenable number.

60660551649 is a deficient number, since it is larger than the sum of its proper divisors (20220183887).

60660551649 is a wasteful number, since it uses less digits than its factorization.

60660551649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20220183886.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 60660551649 in words is "sixty billion, six hundred sixty million, five hundred fifty-one thousand, six hundred forty-nine".