1021666070610 has 24 divisors (see below), whose sum is σ = 2656331783820. Its totient is φ = 272444285472.

The previous prime is 1021666070599. The next prime is 1021666070617. The reversal of 1021666070610 is 160706661201.

It can be written as a sum of positive squares in 2 ways, for example, as 978989534721 + 42676535889 = 989439^2 + 206583^2 .

It is not an unprimeable number, because it can be changed into a prime (1021666070617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5675922525 + ... + 5675922704.

Almost surely, 2^{1021666070610} is an apocalyptic number.

1021666070610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021666070610 is an abundant number, since it is smaller than the sum of its proper divisors (1634665713210).

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

1021666070610 is a wasteful number, since it uses less digits than its factorization.

1021666070610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11351845242 (or 11351845239 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 1021666070610 in words is "one trillion, twenty-one billion, six hundred sixty-six million, seventy thousand, six hundred ten".