40520065347534 has 16 divisors (see below), whose sum is σ = 81040809220560. Its totient is φ = 13506575361600.

The previous prime is 40520065347521. The next prime is 40520065347569. The reversal of 40520065347534 is 43574356002504.

It is a happy number.

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, 27493917 + ... + 28930184.

It is an arithmetic number, because the mean of its divisors is an integer number (5065050576285).

Almost surely, 2^{40520065347534} is an apocalyptic number.

40520065347534 is an abundant number, since it is smaller than the sum of its proper divisors (40520743873026).

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

40520065347534 is a wasteful number, since it uses less digits than its factorization.

40520065347534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56543795.

The product of its (nonzero) digits is 6048000, while the sum is 48.

The spelling of 40520065347534 in words is "forty trillion, five hundred twenty billion, sixty-five million, three hundred forty-seven thousand, five hundred thirty-four".