201620562040 has 96 divisors (see below), whose sum is σ = 471245932080. Its totient is φ = 77594001408.

The previous prime is 201620562001. The next prime is 201620562053. The reversal of 201620562040 is 40265026102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7708024 + ... + 7734136.

Almost surely, 2^201620562040 is an apocalyptic number.

201620562040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201620562040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235622966040).

201620562040 is an abundant number, since it is smaller than the sum of its proper divisors (269625370040).

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

201620562040 is a wasteful number, since it uses less digits than its factorization.

201620562040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26301 (or 26230 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 201620562040 its reverse (40265026102), we get a palindrome (241885588142).

The spelling of 201620562040 in words is "two hundred one billion, six hundred twenty million, five hundred sixty-two thousand, forty".