662420942694 has 48 divisors (see below), whose sum is σ = 1640725981440. Its totient is φ = 189211716720.

The previous prime is 662420942693. The next prime is 662420942699. The reversal of 662420942694 is 496249024266.

662420942694 is a `hidden beast` number, since 6 + 6 + 2 + 4 + 209 + 426 + 9 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 662420942694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662420942693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247114 + ... + 1177245.

It is an arithmetic number, because the mean of its divisors is an integer number (34181791280).

Almost surely, 2^662420942694 is an apocalyptic number.

662420942694 is an abundant number, since it is smaller than the sum of its proper divisors (978305038746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

662420942694 is a wasteful number, since it uses less digits than its factorization.

662420942694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428065 (or 1428062 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 54.

The spelling of 662420942694 in words is "six hundred sixty-two billion, four hundred twenty million, nine hundred forty-two thousand, six hundred ninety-four".