63533321145 has 192 divisors, whose sum is σ = 135862272000. Its totient is φ = 26806560768.

The previous prime is 63533321143. The next prime is 63533321147. The reversal of 63533321145 is 54112333536.

63533321145 is a `hidden beast` number, since 6 + 3 + 533 + 3 + 2 + 114 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (63533321143) and next prime (63533321147).

It is not a de Polignac number, because 63533321145 - 2¹ = 63533321143 is a prime.

It is a super-2 number, since 2×63533321145² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63533321141) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 75724636 + ... + 75725474.

It is an arithmetic number, because the mean of its divisors is an integer number (707616000).

Almost surely, 2^63533321145 is an apocalyptic number.

It is an amenable number.

63533321145 is an abundant number, since it is smaller than the sum of its proper divisors (72328950855).

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

63533321145 is a wasteful number, since it uses less digits than its factorization.

63533321145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1129 counting only the distinct ones).

The product of its digits is 97200, while the sum is 36.

The spelling of 63533321145 in words is "sixty-three billion, five hundred thirty-three million, three hundred twenty-one thousand, one hundred forty-five".