201425177907668 has 48 divisors (see below), whose sum is σ = 414564666788160. Its totient is φ = 84423087283200.

The previous prime is 201425177907649. The next prime is 201425177907683. The reversal of 201425177907668 is 866709771524102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188996018 + ... + 190058793.

It is an arithmetic number, because the mean of its divisors is an integer number (8636763891420).

Almost surely, 2^{201425177907668} is an apocalyptic number.

It is an amenable number.

201425177907668 is an abundant number, since it is smaller than the sum of its proper divisors (213139488880492).

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

201425177907668 is a wasteful number, since it uses less digits than its factorization.

201425177907668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379055768 (or 379055766 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 65.

The spelling of 201425177907668 in words is "two hundred one trillion, four hundred twenty-five billion, one hundred seventy-seven million, nine hundred seven thousand, six hundred sixty-eight".