264404061356542 has 16 divisors (see below), whose sum is σ = 396632616322320. Its totient is φ = 132193189605312.

The previous prime is 264404061356473. The next prime is 264404061356551. The reversal of 264404061356542 is 245653160404462.

It is a super-2 number, since 2×264404061356542² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 264404061356542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2469789088 + ... + 2469896140.

It is an arithmetic number, because the mean of its divisors is an integer number (24789538520145).

Almost surely, 2^{264404061356542} is an apocalyptic number.

264404061356542 is a deficient number, since it is larger than the sum of its proper divisors (132228554965778).

264404061356542 is a wasteful number, since it uses less digits than its factorization.

264404061356542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178107.

The product of its (nonzero) digits is 16588800, while the sum is 52.

The spelling of 264404061356542 in words is "two hundred sixty-four trillion, four hundred four billion, sixty-one million, three hundred fifty-six thousand, five hundred forty-two".