203193091464 has 64 divisors (see below), whose sum is σ = 586760811840. Its totient is φ = 57951682560.

The previous prime is 203193091457. The next prime is 203193091469. The reversal of 203193091464 is 464190391302.

It is not an unprimeable number, because it can be changed into a prime (203193091469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22632889 + ... + 22641864.

It is an arithmetic number, because the mean of its divisors is an integer number (9168137685).

Almost surely, 2^203193091464 is an apocalyptic number.

203193091464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

203193091464 is an abundant number, since it is smaller than the sum of its proper divisors (383567720376).

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

203193091464 is a wasteful number, since it uses less digits than its factorization.

203193091464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45274790 (or 45274786 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 203193091464 in words is "two hundred three billion, one hundred ninety-three million, ninety-one thousand, four hundred sixty-four".