63081605358 has 64 divisors (see below), whose sum is σ = 143602237440. Its totient is φ = 20519503200.

The previous prime is 63081605351. The next prime is 63081605369. The reversal of 63081605358 is 85350618036.

63081605358 is a `hidden beast` number, since 6 + 3 + 0 + 8 + 1 + 605 + 35 + 8 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63081605351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342943 + ... + 493733.

It is an arithmetic number, because the mean of its divisors is an integer number (2243784960).

Almost surely, 2^63081605358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63081605358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71801118720).

63081605358 is an abundant number, since it is smaller than the sum of its proper divisors (80520632082).

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

63081605358 is a wasteful number, since it uses less digits than its factorization.

63081605358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150990 (or 150984 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 63081605358 in words is "sixty-three billion, eighty-one million, six hundred five thousand, three hundred fifty-eight".