145446311642 has 16 divisors (see below), whose sum is σ = 218942560872. Its totient is φ = 72465523200.

The previous prime is 145446311641. The next prime is 145446311693. The reversal of 145446311642 is 246113644541.

It can be written as a sum of positive squares in 4 ways, for example, as 123263485921 + 22182825721 = 351089^2 + 148939^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145446311642.

It is not an unprimeable number, because it can be changed into a prime (145446311641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7374338 + ... + 7394034.

Almost surely, 2^145446311642 is an apocalyptic number.

145446311642 is a deficient number, since it is larger than the sum of its proper divisors (73496249230).

145446311642 is a wasteful number, since it uses less digits than its factorization.

145446311642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32593.

The product of its digits is 276480, while the sum is 41.

The spelling of 145446311642 in words is "one hundred forty-five billion, four hundred forty-six million, three hundred eleven thousand, six hundred forty-two".