66463100 has 144 divisors (see below), whose sum is σ = 170989056. Its totient is φ = 22176000.

The previous prime is 66463073. The next prime is 66463127. The reversal of 66463100 is 136466.

It is an interprime number because it is at equal distance from previous prime (66463073) and next prime (66463127).

It is a super-2 number, since 2×66463100² = 8834687323220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66463100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 936065 + ... + 936135.

It is an arithmetic number, because the mean of its divisors is an integer number (1187424).

Almost surely, 2^66463100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66463100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85494528).

66463100 is an abundant number, since it is smaller than the sum of its proper divisors (104525956).

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

66463100 is a wasteful number, since it uses less digits than its factorization.

66463100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 66463100 is about 8152.4904170444. The cubic root of 66463100 is about 405.0670010575.

Adding to 66463100 its reverse (136466), we get a palindrome (66599566).

The spelling of 66463100 in words is "sixty-six million, four hundred sixty-three thousand, one hundred".