132778120802 has 12 divisors (see below), whose sum is σ = 208203123030. Its totient is φ = 63502579008.

The previous prime is 132778120801. The next prime is 132778120877. The reversal of 132778120802 is 208021877231.

It can be written as a sum of positive squares in only one way, i.e., 84157429801 + 48620691001 = 290099^2 + 220501^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 132778120802.

It is not an unprimeable number, because it can be changed into a prime (132778120801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62748527 + ... + 62750642.

Almost surely, 2^132778120802 is an apocalyptic number.

132778120802 is a deficient number, since it is larger than the sum of its proper divisors (75425002228).

132778120802 is a wasteful number, since it uses less digits than its factorization.

132778120802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125499217 (or 125499194 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The spelling of 132778120802 in words is "one hundred thirty-two billion, seven hundred seventy-eight million, one hundred twenty thousand, eight hundred two".