201015545340 has 96 divisors (see below), whose sum is σ = 571460924160. Its totient is φ = 52784050176.

The previous prime is 201015545329. The next prime is 201015545347. The reversal of 201015545340 is 43545510102.

201015545340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 201015545298 and 201015545307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201015545347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12707356 + ... + 12723164.

It is an arithmetic number, because the mean of its divisors is an integer number (5952717960).

Almost surely, 2^201015545340 is an apocalyptic number.

201015545340 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 201015545340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285730462080).

201015545340 is an abundant number, since it is smaller than the sum of its proper divisors (370445378820).

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

201015545340 is a wasteful number, since it uses less digits than its factorization.

201015545340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19051 (or 19049 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 201015545340 in words is "two hundred one billion, fifteen million, five hundred forty-five thousand, three hundred forty".