2616663666542 has 8 divisors (see below), whose sum is σ = 3925813392000. Its totient is φ = 1308059202544.

The previous prime is 2616663666527. The next prime is 2616663666571. The reversal of 2616663666542 is 2456663666162.

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

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, 136303367 + ... + 136322562.

It is an arithmetic number, because the mean of its divisors is an integer number (490726674000).

Almost surely, 2^{2616663666542} is an apocalyptic number.

2616663666542 is a deficient number, since it is larger than the sum of its proper divisors (1309149725458).

2616663666542 is a wasteful number, since it uses less digits than its factorization.

2616663666542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272630730.

The product of its digits is 67184640, while the sum is 59.

The spelling of 2616663666542 in words is "two trillion, six hundred sixteen billion, six hundred sixty-three million, six hundred sixty-six thousand, five hundred forty-two".