7665613347042 has 32 divisors (see below), whose sum is σ = 19468224374400. Its totient is φ = 2190175241904.

The previous prime is 7665613347031. The next prime is 7665613347047. The reversal of 7665613347042 is 2407433165667.

7665613347042 is a `hidden beast` number, since 7 + 6 + 6 + 561 + 3 + 3 + 4 + 70 + 4 + 2 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 7665613347042.

It is not an unprimeable number, because it can be changed into a prime (7665613347047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10139699817 + ... + 10139700572.

It is an arithmetic number, because the mean of its divisors is an integer number (608382011700).

Almost surely, 2^{7665613347042} is an apocalyptic number.

7665613347042 is an abundant number, since it is smaller than the sum of its proper divisors (11802611027358).

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

7665613347042 is a wasteful number, since it uses less digits than its factorization.

7665613347042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20279400407 (or 20279400401 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 54.

The spelling of 7665613347042 in words is "seven trillion, six hundred sixty-five billion, six hundred thirteen million, three hundred forty-seven thousand, forty-two".