42505131066356 has 96 divisors (see below), whose sum is σ = 87013961717760. Its totient is φ = 17791979184000.

The previous prime is 42505131066347. The next prime is 42505131066397. The reversal of 42505131066356 is 65366013150524.

It is a self number, because there is not a number n which added to its sum of digits gives 42505131066356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1526147831 + ... + 1526175681.

It is an arithmetic number, because the mean of its divisors is an integer number (906395434560).

Almost surely, 2^{42505131066356} is an apocalyptic number.

It is an amenable number.

42505131066356 is an abundant number, since it is smaller than the sum of its proper divisors (44508830651404).

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

42505131066356 is a wasteful number, since it uses less digits than its factorization.

42505131066356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35085 (or 35083 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 42505131066356 in words is "forty-two trillion, five hundred five billion, one hundred thirty-one million, sixty-six thousand, three hundred fifty-six".