662654420253544 has 16 divisors (see below), whose sum is σ = 1285321073768100. Its totient is φ = 319902133915392.

The previous prime is 662654420253493. The next prime is 662654420253649. The reversal of 662654420253544 is 445352024456266.

It can be written as a sum of positive squares in 2 ways, for example, as 597928179604900 + 64726240648644 = 24452570^2 + 8045262^2 .

It is a super-2 number, since 2×662654420253544² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428134526177 + ... + 1428134526640.

Almost surely, 2^{662654420253544} is an apocalyptic number.

It is an amenable number.

662654420253544 is a deficient number, since it is larger than the sum of its proper divisors (622666653514556).

662654420253544 is a wasteful number, since it uses less digits than its factorization.

662654420253544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856269052852 (or 2856269052848 counting only the distinct ones).

The product of its (nonzero) digits is 165888000, while the sum is 58.

The spelling of 662654420253544 in words is "six hundred sixty-two trillion, six hundred fifty-four billion, four hundred twenty million, two hundred fifty-three thousand, five hundred forty-four".