201680734425 has 24 divisors (see below), whose sum is σ = 333515558400. Its totient is φ = 107540452800.

The previous prime is 201680734417. The next prime is 201680734469. The reversal of 201680734425 is 524437086102.

It is not a de Polignac number, because 201680734425 - 2³ = 201680734417 is a prime.

It is a super-3 number, since 3×201680734425³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79755 + ... + 640095.

It is an arithmetic number, because the mean of its divisors is an integer number (13896481600).

Almost surely, 2^201680734425 is an apocalyptic number.

201680734425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201680734425 is a deficient number, since it is larger than the sum of its proper divisors (131834823975).

201680734425 is a wasteful number, since it uses less digits than its factorization.

201680734425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565153 (or 565148 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 201680734425 in words is "two hundred one billion, six hundred eighty million, seven hundred thirty-four thousand, four hundred twenty-five".