866537332413032 has 48 divisors (see below), whose sum is σ = 1890798313375620. Its totient is φ = 371221002297600.

The previous prime is 866537332413029. The next prime is 866537332413091. The reversal of 866537332413032 is 230314233735668.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 705252259975396 + 161285072437636 = 26556586^2 + 12699806^2 .

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451840019 + ... + 453753762.

Almost surely, 2^{866537332413032} is an apocalyptic number.

It is an amenable number.

866537332413032 is an abundant number, since it is smaller than the sum of its proper divisors (1024260980962588).

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

866537332413032 is a wasteful number, since it uses less digits than its factorization.

866537332413032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905596242 (or 905596231 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 56.

The spelling of 866537332413032 in words is "eight hundred sixty-six trillion, five hundred thirty-seven billion, three hundred thirty-two million, four hundred thirteen thousand, thirty-two".