201002010040 has 64 divisors (see below), whose sum is σ = 512677216800. Its totient is φ = 70310011392.

The previous prime is 201002009993. The next prime is 201002010047. The reversal of 201002010040 is 40010200102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 201002009999 and 201002010026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002010047) 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, 10162287 + ... + 10182046.

Almost surely, 2^201002010040 is an apocalyptic number.

201002010040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201002010040 is an abundant number, since it is smaller than the sum of its proper divisors (311675206760).

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

201002010040 is a wasteful number, since it uses less digits than its factorization.

201002010040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20344376 (or 20344372 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 201002010040 its reverse (40010200102), we get a palindrome (241012210142).

The spelling of 201002010040 in words is "two hundred one billion, two million, ten thousand, forty".