145611444542 has 4 divisors (see below), whose sum is σ = 218417166816. Its totient is φ = 72805722270.

The previous prime is 145611444529. The next prime is 145611444553. The reversal of 145611444542 is 245444116541.

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

It is a self number, because there is not a number n which added to its sum of digits gives 145611444542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36402861134 + ... + 36402861137.

It is an arithmetic number, because the mean of its divisors is an integer number (54604291704).

Almost surely, 2^145611444542 is an apocalyptic number.

145611444542 is a deficient number, since it is larger than the sum of its proper divisors (72805722274).

145611444542 is an equidigital number, since it uses as much as digits as its factorization.

145611444542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72805722273.

The product of its digits is 307200, while the sum is 41.

The spelling of 145611444542 in words is "one hundred forty-five billion, six hundred eleven million, four hundred forty-four thousand, five hundred forty-two".