145139637816 has 24 divisors (see below), whose sum is σ = 393086519280. Its totient is φ = 48379879248.

The previous prime is 145139637809. The next prime is 145139637827. The reversal of 145139637816 is 618736931541.

145139637816 is a `hidden beast` number, since 1 + 4 + 513 + 96 + 37 + 8 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1007914080 + ... + 1007914223.

It is an arithmetic number, because the mean of its divisors is an integer number (16378604970).

Almost surely, 2^145139637816 is an apocalyptic number.

It is an amenable number.

145139637816 is an abundant number, since it is smaller than the sum of its proper divisors (247946881464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145139637816 is a wasteful number, since it uses less digits than its factorization.

145139637816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015828315 (or 2015828308 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 145139637816 in words is "one hundred forty-five billion, one hundred thirty-nine million, six hundred thirty-seven thousand, eight hundred sixteen".