203740406680 has 32 divisors (see below), whose sum is σ = 461915285040. Its totient is φ = 80874052480.

The previous prime is 203740406659. The next prime is 203740406693. The reversal of 203740406680 is 86604047302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19435639 + ... + 19446118.

Almost surely, 2^203740406680 is an apocalyptic number.

203740406680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203740406680 is an abundant number, since it is smaller than the sum of its proper divisors (258174878360).

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

203740406680 is a wasteful number, since it uses less digits than its factorization.

203740406680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38881899 (or 38881895 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 203740406680 in words is "two hundred three billion, seven hundred forty million, four hundred six thousand, six hundred eighty".