203069078640 has 240 divisors, whose sum is σ = 745384363776. Its totient is φ = 49322188800.

The previous prime is 203069078567. The next prime is 203069078647. The reversal of 203069078640 is 46870960302.

It is a tau number, because it is divible by the number of its divisors (240).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203069078647) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111850 + ... + 647030.

Almost surely, 2^203069078640 is an apocalyptic number.

203069078640 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 203069078640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372692181888).

203069078640 is an abundant number, since it is smaller than the sum of its proper divisors (542315285136).

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

203069078640 is a wasteful number, since it uses less digits than its factorization.

203069078640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535248 (or 535239 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 203069078640 in words is "two hundred three billion, sixty-nine million, seventy-eight thousand, six hundred forty".