667520362720003 has 32 divisors (see below), whose sum is σ = 734262979788800. Its totient is φ = 603119271396096.

The previous prime is 667520362719989. The next prime is 667520362720073. The reversal of 667520362720003 is 300027263025766.

It is not a de Polignac number, because 667520362720003 - 2⁵ = 667520362719971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667520362720073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167985103 + ... + 171912871.

It is an arithmetic number, because the mean of its divisors is an integer number (22945718118400).

Almost surely, 2^{667520362720003} is an apocalyptic number.

667520362720003 is a deficient number, since it is larger than the sum of its proper divisors (66742617068797).

667520362720003 is a wasteful number, since it uses less digits than its factorization.

667520362720003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929291.

The product of its (nonzero) digits is 3810240, while the sum is 49.

The spelling of 667520362720003 in words is "six hundred sixty-seven trillion, five hundred twenty billion, three hundred sixty-two million, seven hundred twenty thousand, three".