245339342540640 has 192 divisors, whose sum is σ = 874889354404800. Its totient is φ = 64189412831232.

The previous prime is 245339342540609. The next prime is 245339342540687. The reversal of 245339342540640 is 46045243933542.

245339342540640 is a `hidden beast` number, since 2 + 4 + 5 + 3 + 3 + 9 + 34 + 2 + 540 + 64 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 535540045 + ... + 535997964.

It is an arithmetic number, because the mean of its divisors is an integer number (4556715387525).

Almost surely, 2^{245339342540640} is an apocalyptic number.

245339342540640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245339342540640 is an abundant number, since it is smaller than the sum of its proper divisors (629550011864160).

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

245339342540640 is a wasteful number, since it uses less digits than its factorization.

245339342540640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071538086 (or 1071538072 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 54.

The spelling of 245339342540640 in words is "two hundred forty-five trillion, three hundred thirty-nine billion, three hundred forty-two million, five hundred forty thousand, six hundred forty".