2660365542 has 8 divisors (see below), whose sum is σ = 5320731096. Its totient is φ = 886788512.

The previous prime is 2660365531. The next prime is 2660365559. The reversal of 2660365542 is 2455630662.

It is a sphenic number, since it is the product of 3 distinct primes.

2660365542 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2660365542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221697123 + ... + 221697134.

It is an arithmetic number, because the mean of its divisors is an integer number (665091387).

Almost surely, 2^2660365542 is an apocalyptic number.

2660365542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2660365542 is a wasteful number, since it uses less digits than its factorization.

2660365542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443394262.

The product of its (nonzero) digits is 259200, while the sum is 39.

The square root of 2660365542 is about 51578.7314888608. The cubic root of 2660365542 is about 1385.6294483212.

The spelling of 2660365542 in words is "two billion, six hundred sixty million, three hundred sixty-five thousand, five hundred forty-two".