662662426442 has 16 divisors (see below), whose sum is σ = 1029117099240. Its totient is φ = 319642233792.

The previous prime is 662662426411. The next prime is 662662426451. The reversal of 662662426442 is 244624266266.

It can be written as a sum of positive squares in 4 ways, for example, as 169800860761 + 492861565681 = 412069^2 + 702041^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4639133 + ... + 4779840.

Almost surely, 2^662662426442 is an apocalyptic number.

662662426442 is a deficient number, since it is larger than the sum of its proper divisors (366454672798).

662662426442 is a wasteful number, since it uses less digits than its factorization.

662662426442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9420217.

The product of its digits is 7962624, while the sum is 50.

The spelling of 662662426442 in words is "six hundred sixty-two billion, six hundred sixty-two million, four hundred twenty-six thousand, four hundred forty-two".