7385532081664 has 80 divisors (see below), whose sum is σ = 16099043233680. Its totient is φ = 3356874178560.

The previous prime is 7385532081617. The next prime is 7385532081721. The reversal of 7385532081664 is 4661802355837.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7385532081599 and 7385532081608.

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, 190167592 + ... + 190206424.

It is an arithmetic number, because the mean of its divisors is an integer number (201238040421).

Almost surely, 2^{7385532081664} is an apocalyptic number.

It is an amenable number.

7385532081664 is an abundant number, since it is smaller than the sum of its proper divisors (8713511152016).

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

7385532081664 is a wasteful number, since it uses less digits than its factorization.

7385532081664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72631 (or 72615 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 7385532081664 in words is "seven trillion, three hundred eighty-five billion, five hundred thirty-two million, eighty-one thousand, six hundred sixty-four".