1331165552502 has 16 divisors (see below), whose sum is σ = 2662346802672. Its totient is φ = 443719234560.

The previous prime is 1331165552471. The next prime is 1331165552503. The reversal of 1331165552502 is 2052555611331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331165552503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647602 + ... + 1755482.

It is an arithmetic number, because the mean of its divisors is an integer number (166396675167).

Almost surely, 2^{1331165552502} is an apocalyptic number.

1331165552502 is an abundant number, since it is smaller than the sum of its proper divisors (1331181250170).

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

1331165552502 is a wasteful number, since it uses less digits than its factorization.

1331165552502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308143.

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 1331165552502 in words is "one trillion, three hundred thirty-one billion, one hundred sixty-five million, five hundred fifty-two thousand, five hundred two".