60664551923 has 4 divisors (see below), whose sum is σ = 60724086360. Its totient is φ = 60605017488.

The previous prime is 60664551889. The next prime is 60664551947. The reversal of 60664551923 is 32915546606.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60664551923 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (60664551953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29765690 + ... + 29767727.

It is an arithmetic number, because the mean of its divisors is an integer number (15181021590).

Almost surely, 2^60664551923 is an apocalyptic number.

60664551923 is a deficient number, since it is larger than the sum of its proper divisors (59534437).

60664551923 is a wasteful number, since it uses less digits than its factorization.

60664551923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59534436.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 60664551923 in words is "sixty billion, six hundred sixty-four million, five hundred fifty-one thousand, nine hundred twenty-three".