201663045342 has 48 divisors (see below), whose sum is σ = 488283934320. Its totient is φ = 59619523200.

The previous prime is 201663045341. The next prime is 201663045359. The reversal of 201663045342 is 243540366102.

201663045342 is a `hidden beast` number, since 2 + 0 + 1 + 6 + 6 + 304 + 5 + 342 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 201663045297 and 201663045306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201663045341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12412617 + ... + 12428852.

It is an arithmetic number, because the mean of its divisors is an integer number (10172581965).

Almost surely, 2^201663045342 is an apocalyptic number.

201663045342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201663045342 is an abundant number, since it is smaller than the sum of its proper divisors (286620888978).

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

201663045342 is a wasteful number, since it uses less digits than its factorization.

201663045342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24841529 (or 24841526 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 201663045342 in words is "two hundred one billion, six hundred sixty-three million, forty-five thousand, three hundred forty-two".