1020703666820 has 96 divisors (see below), whose sum is σ = 2211547968000. Its totient is φ = 395576123904.

The previous prime is 1020703666819. The next prime is 1020703666823. The reversal of 1020703666820 is 286663070201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1020703666823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19513742 + ... + 19565978.

It is an arithmetic number, because the mean of its divisors is an integer number (23036958000).

Almost surely, 2^{1020703666820} is an apocalyptic number.

1020703666820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020703666820 is an abundant number, since it is smaller than the sum of its proper divisors (1190844301180).

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

1020703666820 is a wasteful number, since it uses less digits than its factorization.

1020703666820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52557 (or 52555 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 1020703666820 in words is "one trillion, twenty billion, seven hundred three million, six hundred sixty-six thousand, eight hundred twenty".