245021751100 has 216 divisors, whose sum is σ = 643595682240. Its totient is φ = 80633710080.

The previous prime is 245021751097. The next prime is 245021751127. The reversal of 245021751100 is 1157120542.

It is a super-2 number, since 2×245021751100² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 24578317 + ... + 24588283.

It is an arithmetic number, because the mean of its divisors is an integer number (2979609640).

Almost surely, 2^245021751100 is an apocalyptic number.

245021751100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245021751100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321797841120).

245021751100 is an abundant number, since it is smaller than the sum of its proper divisors (398573931140).

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

245021751100 is a wasteful number, since it uses less digits than its factorization.

245021751100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10197 (or 10183 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

Adding to 245021751100 its reverse (1157120542), we get a palindrome (246178871642).

The spelling of 245021751100 in words is "two hundred forty-five billion, twenty-one million, seven hundred fifty-one thousand, one hundred".