146017720642 has 4 divisors (see below), whose sum is σ = 219026580966. Its totient is φ = 73008860320.

The previous prime is 146017720637. The next prime is 146017720663. The reversal of 146017720642 is 246027710641.

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

It can be written as a sum of positive squares in only one way, i.e., 100870395201 + 45147325441 = 317601^2 + 212479^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 146017720595 and 146017720604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36504430159 + ... + 36504430162.

Almost surely, 2^146017720642 is an apocalyptic number.

146017720642 is a deficient number, since it is larger than the sum of its proper divisors (73008860324).

146017720642 is an equidigital number, since it uses as much as digits as its factorization.

146017720642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73008860323.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 146017720642 in words is "one hundred forty-six billion, seventeen million, seven hundred twenty thousand, six hundred forty-two".