1620005557252 has 24 divisors (see below), whose sum is σ = 2869388204256. Its totient is φ = 800181864768.

The previous prime is 1620005557229. The next prime is 1620005557301. The reversal of 1620005557252 is 2527555000261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4272603 + ... + 4636285.

It is an arithmetic number, because the mean of its divisors is an integer number (119557841844).

Almost surely, 2^{1620005557252} is an apocalyptic number.

It is an amenable number.

1620005557252 is a deficient number, since it is larger than the sum of its proper divisors (1249382647004).

1620005557252 is a wasteful number, since it uses less digits than its factorization.

1620005557252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377187 (or 377185 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 40.

The spelling of 1620005557252 in words is "one trillion, six hundred twenty billion, five million, five hundred fifty-seven thousand, two hundred fifty-two".