40545215616 has 32 divisors (see below), whose sum is σ = 107698230000. Its totient is φ = 13515071744.

The previous prime is 40545215597. The next prime is 40545215639. The reversal of 40545215616 is 61651254504.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52792866 + ... + 52793633.

Almost surely, 2^40545215616 is an apocalyptic number.

It is an amenable number.

40545215616 is an abundant number, since it is smaller than the sum of its proper divisors (67153014384).

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

40545215616 is a wasteful number, since it uses less digits than its factorization.

40545215616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105586516 (or 105586504 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 40545215616 in words is "forty billion, five hundred forty-five million, two hundred fifteen thousand, six hundred sixteen".