15042642566 has 16 divisors (see below), whose sum is σ = 25796413440. Its totient is φ = 6444590280.

The previous prime is 15042642547. The next prime is 15042642569. The reversal of 15042642566 is 66524624051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15042642569) 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, 146300 + ... + 226911.

It is an arithmetic number, because the mean of its divisors is an integer number (1612275840).

Almost surely, 2^15042642566 is an apocalyptic number.

15042642566 is a deficient number, since it is larger than the sum of its proper divisors (10753770874).

15042642566 is a wasteful number, since it uses less digits than its factorization.

15042642566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376099.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 15042642566 in words is "fifteen billion, forty-two million, six hundred forty-two thousand, five hundred sixty-six".