201005680542 has 32 divisors (see below), whose sum is σ = 404394246144. Its totient is φ = 66605229600.

The previous prime is 201005680531. The next prime is 201005680549. The reversal of 201005680542 is 245086500102.

It is a super-2 number, since 2×201005680542² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201005680549) 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, 1626148 + ... + 1745384.

It is an arithmetic number, because the mean of its divisors is an integer number (12637320192).

Almost surely, 2^201005680542 is an apocalyptic number.

201005680542 is an abundant number, since it is smaller than the sum of its proper divisors (203388565602).

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

201005680542 is a wasteful number, since it uses less digits than its factorization.

201005680542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120904.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 201005680542 in words is "two hundred one billion, five million, six hundred eighty thousand, five hundred forty-two".