662736015401 has 2 divisors, whose sum is σ = 662736015402. Its totient is φ = 662736015400.

The previous prime is 662736015379. The next prime is 662736015463. The reversal of 662736015401 is 104510637266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 662734387225 + 1628176 = 814085^2 + 1276^2 .

It is a cyclic number.

It is not a de Polignac number, because 662736015401 - 2³⁰ = 661662273577 is a prime.

It is a super-2 number, since 2×662736015401² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (662736015481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331368007700 + 331368007701.

It is an arithmetic number, because the mean of its divisors is an integer number (331368007701).

Almost surely, 2^662736015401 is an apocalyptic number.

It is an amenable number.

662736015401 is a deficient number, since it is larger than the sum of its proper divisors (1).

662736015401 is an equidigital number, since it uses as much as digits as its factorization.

662736015401 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 662736015401 in words is "six hundred sixty-two billion, seven hundred thirty-six million, fifteen thousand, four hundred one".