245399272416 has 144 divisors (see below), whose sum is σ = 725789937600. Its totient is φ = 78581228544.

The previous prime is 245399272399. The next prime is 245399272421. The reversal of 245399272416 is 614272993542.

It is a happy number.

245399272416 is a `hidden beast` number, since 2 + 4 + 5 + 399 + 2 + 7 + 241 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 696070 + ... + 987578.

It is an arithmetic number, because the mean of its divisors is an integer number (5040207900).

Almost surely, 2^245399272416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245399272416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362894968800).

245399272416 is an abundant number, since it is smaller than the sum of its proper divisors (480390665184).

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

245399272416 is a wasteful number, since it uses less digits than its factorization.

245399272416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291641 (or 291630 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 245399272416 in words is "two hundred forty-five billion, three hundred ninety-nine million, two hundred seventy-two thousand, four hundred sixteen".