15666005741 has 8 divisors (see below), whose sum is σ = 16092820800. Its totient is φ = 15241320160.

The previous prime is 15666005701. The next prime is 15666005749. The reversal of 15666005741 is 14750066651.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15666005741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15666005749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517451 + ... + 546888.

It is an arithmetic number, because the mean of its divisors is an integer number (2011602600).

Almost surely, 2^15666005741 is an apocalyptic number.

It is an amenable number.

15666005741 is a deficient number, since it is larger than the sum of its proper divisors (426815059).

15666005741 is a wasteful number, since it uses less digits than its factorization.

15666005741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064739.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 15666005741 in words is "fifteen billion, six hundred sixty-six million, five thousand, seven hundred forty-one".