2605165761632 has 48 divisors (see below), whose sum is σ = 5883252705792. Its totient is φ = 1112379661440.

The previous prime is 2605165761629. The next prime is 2605165761641. The reversal of 2605165761632 is 2361675615062.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21397238 + ... + 21518645.

It is an arithmetic number, because the mean of its divisors is an integer number (122567764704).

Almost surely, 2^{2605165761632} is an apocalyptic number.

It is an amenable number.

2605165761632 is an abundant number, since it is smaller than the sum of its proper divisors (3278086944160).

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

2605165761632 is a wasteful number, since it uses less digits than its factorization.

2605165761632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42916171 (or 42916163 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 2605165761632 in words is "two trillion, six hundred five billion, one hundred sixty-five million, seven hundred sixty-one thousand, six hundred thirty-two".