245321424341520 has 160 divisors (see below), whose sum is σ = 766419023043072. Its totient is φ = 64910038081536.

The previous prime is 245321424341431. The next prime is 245321424341533. The reversal of 245321424341520 is 25143424123542.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66023124 + ... + 69639756.

Almost surely, 2^{245321424341520} is an apocalyptic number.

245321424341520 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 245321424341520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383209511521536).

245321424341520 is an abundant number, since it is smaller than the sum of its proper divisors (521097598701552).

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

245321424341520 is a wasteful number, since it uses less digits than its factorization.

245321424341520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618849 (or 3618843 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 42.

The spelling of 245321424341520 in words is "two hundred forty-five trillion, three hundred twenty-one billion, four hundred twenty-four million, three hundred forty-one thousand, five hundred twenty".