36642665040 has 80 divisors (see below), whose sum is σ = 113670063936. Its totient is φ = 9764684800.

The previous prime is 36642665039. The next prime is 36642665053. The reversal of 36642665040 is 4056624663.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 36642664983 and 36642665001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303895 + ... + 406985.

Almost surely, 2^36642665040 is an apocalyptic number.

36642665040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36642665040 is an abundant number, since it is smaller than the sum of its proper divisors (77027398896).

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

36642665040 is a wasteful number, since it uses less digits than its factorization.

36642665040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104588 (or 104582 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 36642665040 in words is "thirty-six billion, six hundred forty-two million, six hundred sixty-five thousand, forty".