662945357973 has 16 divisors (see below), whose sum is σ = 898456707072. Its totient is φ = 434727678000.

The previous prime is 662945357969. The next prime is 662945357981. The reversal of 662945357973 is 379753549266.

662945357973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 662945357973 - 2² = 662945357969 is a prime.

It is a super-2 number, since 2×662945357973² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662945357923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3518893 + ... + 3702498.

It is an arithmetic number, because the mean of its divisors is an integer number (56153544192).

Almost surely, 2^662945357973 is an apocalyptic number.

It is an amenable number.

662945357973 is a deficient number, since it is larger than the sum of its proper divisors (235511349099).

662945357973 is a wasteful number, since it uses less digits than its factorization.

662945357973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221896.

The product of its digits is 257191200, while the sum is 66.

The spelling of 662945357973 in words is "six hundred sixty-two billion, nine hundred forty-five million, three hundred fifty-seven thousand, nine hundred seventy-three".