1020170655602 has 24 divisors (see below), whose sum is σ = 1780182876780. Its totient is φ = 437194091040.

The previous prime is 1020170655589. The next prime is 1020170655641. The reversal of 1020170655602 is 2065560710201.

It can be written as a sum of positive squares in 2 ways, for example, as 1006673095561 + 13497560041 = 1003331^2 + 116179^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1786952 + ... + 2287692.

Almost surely, 2^{1020170655602} is an apocalyptic number.

1020170655602 is a deficient number, since it is larger than the sum of its proper divisors (760012221178).

1020170655602 is a wasteful number, since it uses less digits than its factorization.

1020170655602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521546 (or 521539 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 1020170655602 in words is "one trillion, twenty billion, one hundred seventy million, six hundred fifty-five thousand, six hundred two".