201995208140 has 48 divisors (see below), whose sum is σ = 473514370560. Its totient is φ = 71744594880.

The previous prime is 201995208137. The next prime is 201995208143. The reversal of 201995208140 is 41802599102.

It is an interprime number because it is at equal distance from previous prime (201995208137) and next prime (201995208143).

It is a super-3 number, since 3×201995208140³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (201995208143) 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, 10666820 + ... + 10685739.

It is an arithmetic number, because the mean of its divisors is an integer number (9864882720).

Almost surely, 2^201995208140 is an apocalyptic number.

201995208140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201995208140 is an abundant number, since it is smaller than the sum of its proper divisors (271519162420).

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

201995208140 is a wasteful number, since it uses less digits than its factorization.

201995208140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21352622 (or 21352620 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 201995208140 in words is "two hundred one billion, nine hundred ninety-five million, two hundred eight thousand, one hundred forty".