63253546042566 has 64 divisors (see below), whose sum is σ = 140325338013696. Its totient is φ = 18848523456000.

The previous prime is 63253546042537. The next prime is 63253546042597. The reversal of 63253546042566 is 66524064535236.

It is a super-2 number, since 2×63253546042566² (a number of 28 digits) contains 22 as substring.

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, 32443785 + ... + 34338116.

It is an arithmetic number, because the mean of its divisors is an integer number (2192583406464).

Almost surely, 2^{63253546042566} is an apocalyptic number.

63253546042566 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

63253546042566 is an abundant number, since it is smaller than the sum of its proper divisors (77071791971130).

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

63253546042566 is a wasteful number, since it uses less digits than its factorization.

63253546042566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66782157.

The product of its (nonzero) digits is 93312000, while the sum is 57.

The spelling of 63253546042566 in words is "sixty-three trillion, two hundred fifty-three billion, five hundred forty-six million, forty-two thousand, five hundred sixty-six".