662698918980 has 72 divisors (see below), whose sum is σ = 2297356256832. Its totient is φ = 151474038336.

The previous prime is 662698918927. The next prime is 662698919009. The reversal of 662698918980 is 89819896266.

It is a junction number, because it is equal to n+sod(n) for n = 662698918899 and 662698918908.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262974502 + ... + 262977021.

Almost surely, 2^662698918980 is an apocalyptic number.

662698918980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

662698918980 is an abundant number, since it is smaller than the sum of its proper divisors (1634657337852).

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

662698918980 is a wasteful number, since it uses less digits than its factorization.

662698918980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525951545 (or 525951540 counting only the distinct ones).

The product of its (nonzero) digits is 161243136, while the sum is 72.

The spelling of 662698918980 in words is "six hundred sixty-two billion, six hundred ninety-eight million, nine hundred eighteen thousand, nine hundred eighty".