1020703666890 has 64 divisors (see below), whose sum is σ = 2593909557504. Its totient is φ = 256164615168.

The previous prime is 1020703666859. The next prime is 1020703666967. The reversal of 1020703666890 is 986663070201.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16777707 + ... + 16838433.

It is an arithmetic number, because the mean of its divisors is an integer number (40529836836).

Almost surely, 2^{1020703666890} is an apocalyptic number.

1020703666890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020703666890 is an abundant number, since it is smaller than the sum of its proper divisors (1573205890614).

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

1020703666890 is a wasteful number, since it uses less digits than its factorization.

1020703666890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93711.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 1020703666890 in words is "one trillion, twenty billion, seven hundred three million, six hundred sixty-six thousand, eight hundred ninety".