7865165831130 has 320 divisors, whose sum is σ = 22022268871680. Its totient is φ = 2012397198336.

The previous prime is 7865165831071. The next prime is 7865165831161. The reversal of 7865165831130 is 311385615687.

It is a happy number.

7865165831130 is a `hidden beast` number, since 7 + 8 + 6 + 5 + 16 + 583 + 11 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1509915966 + ... + 1509921174.

It is an arithmetic number, because the mean of its divisors is an integer number (68819590224).

Almost surely, 2^{7865165831130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7865165831130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11011134435840).

7865165831130 is an abundant number, since it is smaller than the sum of its proper divisors (14157103040550).

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

7865165831130 is a wasteful number, since it uses less digits than its factorization.

7865165831130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5955 (or 5946 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 7865165831130 in words is "seven trillion, eight hundred sixty-five billion, one hundred sixty-five million, eight hundred thirty-one thousand, one hundred thirty".