1620344975602 has 8 divisors (see below), whose sum is σ = 2431411372800. Its totient is φ = 809874518004.

The previous prime is 1620344975567. The next prime is 1620344975651. The reversal of 1620344975602 is 2065794430261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148978102 + ... + 148988977.

It is an arithmetic number, because the mean of its divisors is an integer number (303926421600).

Almost surely, 2^{1620344975602} is an apocalyptic number.

1620344975602 is a deficient number, since it is larger than the sum of its proper divisors (811066397198).

1620344975602 is a wasteful number, since it uses less digits than its factorization.

1620344975602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297969800.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 1620344975602 in words is "one trillion, six hundred twenty billion, three hundred forty-four million, nine hundred seventy-five thousand, six hundred two".