15256066622542 has 16 divisors (see below), whose sum is σ = 22894082887392. Its totient is φ = 7624705888800.

The previous prime is 15256066622519. The next prime is 15256066622561. The reversal of 15256066622542 is 24522666065251.

It is a self number, because there is not a number n which added to its sum of digits gives 15256066622542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235034292 + ... + 235099192.

It is an arithmetic number, because the mean of its divisors is an integer number (1430880180462).

Almost surely, 2^{15256066622542} is an apocalyptic number.

15256066622542 is a deficient number, since it is larger than the sum of its proper divisors (7638016264850).

15256066622542 is a wasteful number, since it uses less digits than its factorization.

15256066622542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114363.

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 15256066622542 in words is "fifteen trillion, two hundred fifty-six billion, sixty-six million, six hundred twenty-two thousand, five hundred forty-two".