245365143040 has 40 divisors (see below), whose sum is σ = 588301274880. Its totient is φ = 98146056192.

The previous prime is 245365143017. The next prime is 245365143047. The reversal of 245365143040 is 40341563542.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245365143047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47920320 + ... + 47925439.

It is an arithmetic number, because the mean of its divisors is an integer number (14707531872).

Almost surely, 2^245365143040 is an apocalyptic number.

245365143040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245365143040 is an abundant number, since it is smaller than the sum of its proper divisors (342936131840).

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

245365143040 is an frugal number, since it uses more digits than its factorization.

245365143040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95845782 (or 95845766 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 245365143040 in words is "two hundred forty-five billion, three hundred sixty-five million, one hundred forty-three thousand, forty".