245156815900 has 288 divisors, whose sum is σ = 571688409600. Its totient is φ = 91140940800.

The previous prime is 245156815889. The next prime is 245156815901. The reversal of 245156815900 is 9518651542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245156815901) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1763718031 + ... + 1763718169.

It is an arithmetic number, because the mean of its divisors is an integer number (1985029200).

Almost surely, 2^245156815900 is an apocalyptic number.

245156815900 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 245156815900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285844204800).

245156815900 is an abundant number, since it is smaller than the sum of its proper divisors (326531593700).

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

245156815900 is a wasteful number, since it uses less digits than its factorization.

245156815900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 46.

The spelling of 245156815900 in words is "two hundred forty-five billion, one hundred fifty-six million, eight hundred fifteen thousand, nine hundred".