36148221520 has 40 divisors (see below), whose sum is σ = 86316098184. Its totient is φ = 14068495872.

The previous prime is 36148221509. The next prime is 36148221533. The reversal of 36148221520 is 2512284163.

It can be written as a sum of positive squares in 4 ways, for example, as 3110069824 + 33038151696 = 55768^2 + 181764^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×36148221520² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6103159 + ... + 6109078.

Almost surely, 2^36148221520 is an apocalyptic number.

It is an amenable number.

36148221520 is an abundant number, since it is smaller than the sum of its proper divisors (50167876664).

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

36148221520 is a wasteful number, since it uses less digits than its factorization.

36148221520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12212287 (or 12212281 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 36148221520 in words is "thirty-six billion, one hundred forty-eight million, two hundred twenty-one thousand, five hundred twenty".