245557115367140 has 12 divisors (see below), whose sum is σ = 515669942271036. Its totient is φ = 98222846146848.

The previous prime is 245557115367101. The next prime is 245557115367143. The reversal of 245557115367140 is 41763511755542.

It can be written as a sum of positive squares in 2 ways, for example, as 140222732698624 + 105334382668516 = 11841568^2 + 10263254^2 .

It is not an unprimeable number, because it can be changed into a prime (245557115367143) 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, 6138927884159 + ... + 6138927884198.

It is an arithmetic number, because the mean of its divisors is an integer number (42972495189253).

Almost surely, 2^{245557115367140} is an apocalyptic number.

245557115367140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245557115367140 is an abundant number, since it is smaller than the sum of its proper divisors (270112826903896).

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

245557115367140 is a wasteful number, since it uses less digits than its factorization.

245557115367140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12277855768366 (or 12277855768364 counting only the distinct ones).

The product of its (nonzero) digits is 17640000, while the sum is 56.

The spelling of 245557115367140 in words is "two hundred forty-five trillion, five hundred fifty-seven billion, one hundred fifteen million, three hundred sixty-seven thousand, one hundred forty".