662507613401 has 4 divisors (see below), whose sum is σ = 680413224612. Its totient is φ = 644602002192.

The previous prime is 662507613301. The next prime is 662507613403. The reversal of 662507613401 is 104316705266.

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

It can be written as a sum of positive squares in 2 ways, for example, as 541578246400 + 120929367001 = 735920^2 + 347749^2 .

It is a cyclic number.

It is not a de Polignac number, because 662507613401 - 2³⁰ = 661433871577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662507613403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8952805550 + ... + 8952805623.

It is an arithmetic number, because the mean of its divisors is an integer number (170103306153).

Almost surely, 2^662507613401 is an apocalyptic number.

It is an amenable number.

662507613401 is a deficient number, since it is larger than the sum of its proper divisors (17905611211).

662507613401 is a wasteful number, since it uses less digits than its factorization.

662507613401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17905611210.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 662507613401 in words is "six hundred sixty-two billion, five hundred seven million, six hundred thirteen thousand, four hundred one".