1620417236195 has 4 divisors (see below), whose sum is σ = 1944500683440. Its totient is φ = 1296333788952.

The previous prime is 1620417236189. The next prime is 1620417236203. The reversal of 1620417236195 is 5916327140261.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1620417236195 - 2⁶ = 1620417236131 is a prime.

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, 162041723615 + ... + 162041723624.

It is an arithmetic number, because the mean of its divisors is an integer number (486125170860).

Almost surely, 2^{1620417236195} is an apocalyptic number.

1620417236195 is a deficient number, since it is larger than the sum of its proper divisors (324083447245).

1620417236195 is an equidigital number, since it uses as much as digits as its factorization.

1620417236195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324083447244.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 1620417236195 in words is "one trillion, six hundred twenty billion, four hundred seventeen million, two hundred thirty-six thousand, one hundred ninety-five".