40201315521 has 8 divisors (see below), whose sum is σ = 53664303264. Its totient is φ = 26769602400.

The previous prime is 40201315487. The next prime is 40201315537. The reversal of 40201315521 is 12551310204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40201315521 - 2¹⁷ = 40201184449 is a prime.

It is a super-2 number, since 2×40201315521² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40201315491 and 40201315500.

It is not an unprimeable number, because it can be changed into a prime (40201315541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7815655 + ... + 7820796.

It is an arithmetic number, because the mean of its divisors is an integer number (6708037908).

Almost surely, 2^40201315521 is an apocalyptic number.

It is an amenable number.

40201315521 is a deficient number, since it is larger than the sum of its proper divisors (13462987743).

40201315521 is a wasteful number, since it uses less digits than its factorization.

40201315521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15637311.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 40201315521 its reverse (12551310204), we get a palindrome (52752625725).

The spelling of 40201315521 in words is "forty billion, two hundred one million, three hundred fifteen thousand, five hundred twenty-one".